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版本：11.x

Strings

Introduction​

Laravel includes a variety of functions for manipulating string values. Many of these functions are used by the framework itself; however, you are free to use them in your own applications if you find them convenient.

Available Methods​

Strings​

__ class_basename e preg_replace_array Str::after Str::afterLast Str::apa Str::ascii Str::before Str::beforeLast Str::between Str::betweenFirst Str::camel Str::charAt Str::chopStart Str::chopEnd Str::contains Str::containsAll Str::endsWith Str::excerpt Str::finish Str::headline Str::inlineMarkdown Str::is Str::isAscii Str::isJson Str::isUlid Str::isUrl Str::isUuid Str::kebab Str::lcfirst Str::length Str::limit Str::lower Str::markdown Str::mask Str::orderedUuid Str::padBoth Str::padLeft Str::padRight Str::password Str::plural Str::pluralStudly Str::position Str::random Str::remove Str::repeat Str::replace Str::replaceArray Str::replaceFirst Str::replaceLast Str::replaceMatches Str::replaceStart Str::replaceEnd Str::reverse Str::singular Str::slug Str::snake Str::squish Str::start Str::startsWith Str::studly Str::substr Str::substrCount Str::substrReplace Str::swap Str::take Str::title Str::toBase64 Str::toHtmlString Str::transliterate Str::trim Str::ltrim Str::rtrim Str::ucfirst Str::ucsplit Str::upper Str::ulid Str::unwrap Str::uuid Str::wordCount Str::wordWrap Str::words Str::wrap str trans trans_choice

Fluent Strings​

after afterLast apa append ascii basename before beforeLast between betweenFirst camel charAt classBasename chopStart chopEnd contains containsAll dirname endsWith excerpt exactly explode finish headline inlineMarkdown is isAscii isEmpty isNotEmpty isJson isUlid isUrl isUuid kebab lcfirst length limit lower markdown mask match matchAll isMatch newLine padBoth padLeft padRight pipe plural position prepend remove repeat replace replaceArray replaceFirst replaceLast replaceMatches replaceStart replaceEnd scan singular slug snake split squish start startsWith stripTags studly substr substrReplace swap take tap test title toBase64 transliterate trim ltrim rtrim ucfirst ucsplit unwrap upper when whenContains whenContainsAll whenEmpty whenNotEmpty whenStartsWith whenEndsWith whenExactly whenNotExactly whenIs whenIsAscii whenIsUlid whenIsUuid whenTest wordCount words

Strings​

__()​

The __ function translates the given translation string or translation key using your language files:

echo __('Welcome to our application');

echo __('messages.welcome');

If the specified translation string or key does not exist, the __ function will return the given value. So, using the example above, the __ function would return messages.welcome if that translation key does not exist.

class_basename()​

The class_basename function returns the class name of the given class with the class's namespace removed:

$class = class_basename('Foo\Bar\Baz');

// Baz

e()​

The e function runs PHP's htmlspecialchars function with the double_encode option set to true by default:

echo e('<html>foo</html>');

// &lt;html&gt;foo&lt;/html&gt;

preg_replace_array()​

The preg_replace_array function replaces a given pattern in the string sequentially using an array:

$string = 'The event will take place between :start and :end';

$replaced = preg_replace_array('/:[a-z_]+/', ['8:30', '9:00'], $string);

// The event will take place between 8:30 and 9:00

Str::after()​

The Str::after method returns everything after the given value in a string. The entire string will be returned if the value does not exist within the string:

use Illuminate\Support\Str;

$slice = Str::after('This is my name', 'This is');

// ' my name'

Str::afterLast()​

The Str::afterLast method returns everything after the last occurrence of the given value in a string. The entire string will be returned if the value does not exist within the string:

use Illuminate\Support\Str;

$slice = Str::afterLast('App\Http\Controllers\Controller', '\\');

// 'Controller'

Str::apa()​

The Str::apa method converts the given string to title case following the APA guidelines:

use Illuminate\Support\Str;

$title = Str::apa('Creating A Project');

// 'Creating a Project'

Str::ascii()​

The Str::ascii method will attempt to transliterate the string into an ASCII value:

use Illuminate\Support\Str;

$slice = Str::ascii('û');

// 'u'

Str::before()​

The Str::before method returns everything before the given value in a string:

use Illuminate\Support\Str;

$slice = Str::before('This is my name', 'my name');

// 'This is '

Str::beforeLast()​

The Str::beforeLast method returns everything before the last occurrence of the given value in a string:

use Illuminate\Support\Str;

$slice = Str::beforeLast('This is my name', 'is');

// 'This '

Str::between()​

The Str::between method returns the portion of a string between two values:

use Illuminate\Support\Str;

$slice = Str::between('This is my name', 'This', 'name');

// ' is my '

Str::betweenFirst()​

The Str::betweenFirst method returns the smallest possible portion of a string between two values:

use Illuminate\Support\Str;

$slice = Str::betweenFirst('[a] bc [d]', '[', ']');

// 'a'

Str::camel()​

The Str::camel method converts the given string to camelCase:

use Illuminate\Support\Str;

$converted = Str::camel('foo_bar');

// 'fooBar'

Str::charAt()​

The Str::charAt method returns the character at the specified index. If the index is out of bounds, false is returned:

use Illuminate\Support\Str;

$character = Str::charAt('This is my name.', 6);

// 's'

Str::chopStart()​

The Str::chopStart method removes the first occurrence of the given value only if the value appears at the start of the string:

use Illuminate\Support\Str;

$url = Str::chopStart('https://laravel.com', 'https://');

// 'laravel.com'

You may also pass an array as the second argument. If the string starts with any of the values in the array then that value will be removed from string:

use Illuminate\Support\Str;

$url = Str::chopStart('http://laravel.com', ['https://', 'http://']);

// 'laravel.com'

Str::chopEnd()​

The Str::chopEnd method removes the last occurrence of the given value only if the value appears at the end of the string:

use Illuminate\Support\Str;

$url = Str::chopEnd('app/Models/Photograph.php', '.php');

// 'app/Models/Photograph'

You may also pass an array as the second argument. If the string ends with any of the values in the array then that value will be removed from string:

use Illuminate\Support\Str;

$url = Str::chopEnd('laravel.com/index.php', ['/index.html', '/index.php']);

// 'laravel.com'

Str::contains()​

The Str::contains method determines if the given string contains the given value. By default this method is case sensitive:

use Illuminate\Support\Str;

$contains = Str::contains('This is my name', 'my');

// true

You may also pass an array of values to determine if the given string contains any of the values in the array:

use Illuminate\Support\Str;

$contains = Str::contains('This is my name', ['my', 'foo']);

// true

You may disable case sensitivity by setting the ignoreCase argument to true:

use Illuminate\Support\Str;

$contains = Str::contains('This is my name', 'MY', ignoreCase: true);

// true

Str::containsAll()​

The Str::containsAll method determines if the given string contains all of the values in a given array:

use Illuminate\Support\Str;

$containsAll = Str::containsAll('This is my name', ['my', 'name']);

// true

You may disable case sensitivity by setting the ignoreCase argument to true:

use Illuminate\Support\Str;

$containsAll = Str::containsAll('This is my name', ['MY', 'NAME'], ignoreCase: true);

// true

Str::endsWith()​

The Str::endsWith method determines if the given string ends with the given value:

use Illuminate\Support\Str;

$result = Str::endsWith('This is my name', 'name');

// true

You may also pass an array of values to determine if the given string ends with any of the values in the array:

use Illuminate\Support\Str;

$result = Str::endsWith('This is my name', ['name', 'foo']);

// true

$result = Str::endsWith('This is my name', ['this', 'foo']);

// false

Str::excerpt()​

The Str::excerpt method extracts an excerpt from a given string that matches the first instance of a phrase within that string:

use Illuminate\Support\Str;

$excerpt = Str::excerpt('This is my name', 'my', [
    'radius' => 3
]);

// '...is my na...'

The radius option, which defaults to 100, allows you to define the number of characters that should appear on each side of the truncated string.

In addition, you may use the omission option to define the string that will be prepended and appended to the truncated string:

use Illuminate\Support\Str;

$excerpt = Str::excerpt('This is my name', 'name', [
    'radius' => 3,
    'omission' => '(...) '
]);

// '(...) my name'

Str::finish()​

The Str::finish method adds a single instance of the given value to a string if it does not already end with that value:

use Illuminate\Support\Str;

$adjusted = Str::finish('this/string', '/');

// this/string/

$adjusted = Str::finish('this/string/', '/');

// this/string/

Str::headline()​

The Str::headline method will convert strings delimited by casing, hyphens, or underscores into a space delimited string with each word's first letter capitalized:

use Illuminate\Support\Str;

$headline = Str::headline('steve_jobs');

// Steve Jobs

$headline = Str::headline('EmailNotificationSent');

// Email Notification Sent

Str::inlineMarkdown()​

The Str::inlineMarkdown method converts GitHub flavored Markdown into inline HTML using CommonMark. However, unlike the markdown method, it does not wrap all generated HTML in a block-level element:

use Illuminate\Support\Str;

$html = Str::inlineMarkdown('**Laravel**');

// <strong>Laravel</strong>

Markdown Security​

By default, Markdown supports raw HTML, which will expose Cross-Site Scripting (XSS) vulnerabilities when used with raw user input. As per the CommonMark Security documentation, you may use the html_input option to either escape or strip raw HTML, and the allow_unsafe_links option to specify whether to allow unsafe links. If you need to allow some raw HTML, you should pass your compiled Markdown through an HTML Purifier:

use Illuminate\Support\Str;

Str::inlineMarkdown('Inject: <script>alert("Hello XSS!");</script>', [
    'html_input' => 'strip',
    'allow_unsafe_links' => false,
]);

// Inject: alert(&quot;Hello XSS!&quot;);

Str::is()​

The Str::is method determines if a given string matches a given pattern. Asterisks may be used as wildcard values:

use Illuminate\Support\Str;

$matches = Str::is('foo*', 'foobar');

// true

$matches = Str::is('baz*', 'foobar');

// false

Str::isAscii()​

The Str::isAscii method determines if a given string is 7 bit ASCII:

use Illuminate\Support\Str;

$isAscii = Str::isAscii('Taylor');

// true

$isAscii = Str::isAscii('ü');

// false

Str::isJson()​

The Str::isJson method determines if the given string is valid JSON:

use Illuminate\Support\Str;

$result = Str::isJson('[1,2,3]');

// true

$result = Str::isJson('{"first": "John", "last": "Doe"}');

// true

$result = Str::isJson('{first: "John", last: "Doe"}');

// false

Str::isUrl()​

The Str::isUrl method determines if the given string is a valid URL:

use Illuminate\Support\Str;

$isUrl = Str::isUrl('http://example.com');

// true

$isUrl = Str::isUrl('laravel');

// false

The isUrl method considers a wide range of protocols as valid. However, you may specify the protocols that should be considered valid by providing them to the isUrl method:

$isUrl = Str::isUrl('http://example.com', ['http', 'https']);

Str::isUlid()​

The Str::isUlid method determines if the given string is a valid ULID:

use Illuminate\Support\Str;

$isUlid = Str::isUlid('01gd6r360bp37zj17nxb55yv40');

// true

$isUlid = Str::isUlid('laravel');

// false

Str::isUuid()​

The Str::isUuid method determines if the given string is a valid UUID:

use Illuminate\Support\Str;

$isUuid = Str::isUuid('a0a2a2d2-0b87-4a18-83f2-2529882be2de');

// true

$isUuid = Str::isUuid('laravel');

// false

Str::kebab()​

The Str::kebab method converts the given string to kebab-case:

use Illuminate\Support\Str;

$converted = Str::kebab('fooBar');

// foo-bar

Str::lcfirst()​

The Str::lcfirst method returns the given string with the first character lowercased:

use Illuminate\Support\Str;

$string = Str::lcfirst('Foo Bar');

// foo Bar

Str::length()​

The Str::length method returns the length of the given string:

use Illuminate\Support\Str;

$length = Str::length('Laravel');

// 7

Str::limit()​

The Str::limit method truncates the given string to the specified length:

use Illuminate\Support\Str;

$truncated = Str::limit('The quick brown fox jumps over the lazy dog', 20);

// The quick brown fox...

You may pass a third argument to the method to change the string that will be appended to the end of the truncated string:

$truncated = Str::limit('The quick brown fox jumps over the lazy dog', 20, ' (...)');

// The quick brown fox (...)

If you would like to preserve complete words when truncating the string, you may utilize the preserveWords argument. When this argument is true, the string will be truncated to the nearest complete word boundary:

$truncated = Str::limit('The quick brown fox', 12, preserveWords: true);

// The quick...

Str::lower()​

The Str::lower method converts the given string to lowercase:

use Illuminate\Support\Str;

$converted = Str::lower('LARAVEL');

// laravel

Str::markdown()​

The Str::markdown method converts GitHub flavored Markdown into HTML using CommonMark:

use Illuminate\Support\Str;

$html = Str::markdown('# Laravel');

// <h1>Laravel</h1>

$html = Str::markdown('# Taylor <b>Otwell</b>', [
    'html_input' => 'strip',
]);

// <h1>Taylor Otwell</h1>

Markdown Security​

By default, Markdown supports raw HTML, which will expose Cross-Site Scripting (XSS) vulnerabilities when used with raw user input. As per the CommonMark Security documentation, you may use the html_input option to either escape or strip raw HTML, and the allow_unsafe_links option to specify whether to allow unsafe links. If you need to allow some raw HTML, you should pass your compiled Markdown through an HTML Purifier:

use Illuminate\Support\Str;

Str::markdown('Inject: <script>alert("Hello XSS!");</script>', [
    'html_input' => 'strip',
    'allow_unsafe_links' => false,
]);

// <p>Inject: alert(&quot;Hello XSS!&quot;);</p>

Str::mask()​

The Str::mask method masks a portion of a string with a repeated character, and may be used to obfuscate segments of strings such as email addresses and phone numbers:

use Illuminate\Support\Str;

$string = Str::mask('taylor@example.com', '*', 3);

// tay***************

If needed, you provide a negative number as the third argument to the mask method, which will instruct the method to begin masking at the given distance from the end of the string:

$string = Str::mask('taylor@example.com', '*', -15, 3);

// tay***@example.com

Str::orderedUuid()​

The Str::orderedUuid method generates a "timestamp first" UUID that may be efficiently stored in an indexed database column. Each UUID that is generated using this method will be sorted after UUIDs previously generated using the method:

use Illuminate\Support\Str;

return (string) Str::orderedUuid();

Str::padBoth()​

The Str::padBoth method wraps PHP's str_pad function, padding both sides of a string with another string until the final string reaches a desired length:

use Illuminate\Support\Str;

$padded = Str::padBoth('James', 10, '_');

// '__James___'

$padded = Str::padBoth('James', 10);

// '  James   '

Str::padLeft()​

The Str::padLeft method wraps PHP's str_pad function, padding the left side of a string with another string until the final string reaches a desired length:

use Illuminate\Support\Str;

$padded = Str::padLeft('James', 10, '-=');

// '-=-=-James'

$padded = Str::padLeft('James', 10);

// '     James'

Str::padRight()​

The Str::padRight method wraps PHP's str_pad function, padding the right side of a string with another string until the final string reaches a desired length:

use Illuminate\Support\Str;

$padded = Str::padRight('James', 10, '-');

// 'James-----'

$padded = Str::padRight('James', 10);

// 'James     '

Str::password()​

The Str::password method may be used to generate a secure, random password of a given length. The password will consist of a combination of letters, numbers, symbols, and spaces. By default, passwords are 32 characters long:

use Illuminate\Support\Str;

$password = Str::password();

// 'EbJo2vE-AS:U,$%_gkrV4n,q~1xy/-_4'

$password = Str::password(12);

// 'qwuar>#V|i]N'

Str::plural()​

The Str::plural method converts a singular word string to its plural form. This function supports any of the languages support by Laravel's pluralizer:

use Illuminate\Support\Str;

$plural = Str::plural('car');

// cars

$plural = Str::plural('child');

// children

You may provide an integer as a second argument to the function to retrieve the singular or plural form of the string:

use Illuminate\Support\Str;

$plural = Str::plural('child', 2);

// children

$singular = Str::plural('child', 1);

// child

Str::pluralStudly()​

The Str::pluralStudly method converts a singular word string formatted in studly caps case to its plural form. This function supports any of the languages support by Laravel's pluralizer:

use Illuminate\Support\Str;

$plural = Str::pluralStudly('VerifiedHuman');

// VerifiedHumans

$plural = Str::pluralStudly('UserFeedback');

// UserFeedback

You may provide an integer as a second argument to the function to retrieve the singular or plural form of the string:

use Illuminate\Support\Str;

$plural = Str::pluralStudly('VerifiedHuman', 2);

// VerifiedHumans

$singular = Str::pluralStudly('VerifiedHuman', 1);

// VerifiedHuman

Str::position()​

The Str::position method returns the position of the first occurrence of a substring in a string. If the substring does not exist in the given string, false is returned:

use Illuminate\Support\Str;

$position = Str::position('Hello, World!', 'Hello');

// 0

$position = Str::position('Hello, World!', 'W');

// 7

Str::random()​

The Str::random method generates a random string of the specified length. This function uses PHP's random_bytes function:

use Illuminate\Support\Str;

$random = Str::random(40);

During testing, it may be useful to "fake" the value that is returned by the Str::random method. To accomplish this, you may use the createRandomStringsUsing method:

Str::createRandomStringsUsing(function () {
    return 'fake-random-string';
});

To instruct the random method to return to generating random strings normally, you may invoke the createRandomStringsNormally method:

Str::createRandomStringsNormally();

Str::remove()​

The Str::remove method removes the given value or array of values from the string:

use Illuminate\Support\Str;

$string = 'Peter Piper picked a peck of pickled peppers.';

$removed = Str::remove('e', $string);

// Ptr Pipr pickd a pck of pickld ppprs.

You may also pass false as a third argument to the remove method to ignore case when removing strings.

Str::repeat()​

The Str::repeat method repeats the given string:

use Illuminate\Support\Str;

$string = 'a';

$repeat = Str::repeat($string, 5);

// aaaaa

Str::replace()​

The Str::replace method replaces a given string within the string:

use Illuminate\Support\Str;

$string = 'Laravel 10.x';

$replaced = Str::replace('10.x', '11.x', $string);

// Laravel 11.x

The replace method also accepts a caseSensitive argument. By default, the replace method is case sensitive:

Str::replace('Framework', 'Laravel', caseSensitive: false);

Str::replaceArray()​

The Str::replaceArray method replaces a given value in the string sequentially using an array:

use Illuminate\Support\Str;

$string = 'The event will take place between ? and ?';

$replaced = Str::replaceArray('?', ['8:30', '9:00'], $string);

// The event will take place between 8:30 and 9:00

Str::replaceFirst()​

The Str::replaceFirst method replaces the first occurrence of a given value in a string:

use Illuminate\Support\Str;

$replaced = Str::replaceFirst('the', 'a', 'the quick brown fox jumps over the lazy dog');

// a quick brown fox jumps over the lazy dog

Str::replaceLast()​

The Str::replaceLast method replaces the last occurrence of a given value in a string:

use Illuminate\Support\Str;

$replaced = Str::replaceLast('the', 'a', 'the quick brown fox jumps over the lazy dog');

// the quick brown fox jumps over a lazy dog

Str::replaceMatches()​

The Str::replaceMatches method replaces all portions of a string matching a pattern with the given replacement string:

use Illuminate\Support\Str;

$replaced = Str::replaceMatches(
    pattern: '/[^A-Za-z0-9]++/',
    replace: '',
    subject: '(+1) 501-555-1000'
)

// '15015551000'

The replaceMatches method also accepts a closure that will be invoked with each portion of the string matching the given pattern, allowing you to perform the replacement logic within the closure and return the replaced value:

use Illuminate\Support\Str;

$replaced = Str::replaceMatches('/\d/', function (array $matches) {
    return '['.$matches[0].']';
}, '123');

// '[1][2][3]'

Str::replaceStart()​

The Str::replaceStart method replaces the first occurrence of the given value only if the value appears at the start of the string:

use Illuminate\Support\Str;

$replaced = Str::replaceStart('Hello', 'Laravel', 'Hello World');

// Laravel World

$replaced = Str::replaceStart('World', 'Laravel', 'Hello World');

// Hello World

Str::replaceEnd()​

The Str::replaceEnd method replaces the last occurrence of the given value only if the value appears at the end of the string:

use Illuminate\Support\Str;

$replaced = Str::replaceEnd('World', 'Laravel', 'Hello World');

// Hello Laravel

$replaced = Str::replaceEnd('Hello', 'Laravel', 'Hello World');

// Hello World

Str::reverse()​

The Str::reverse method reverses the given string:

use Illuminate\Support\Str;

$reversed = Str::reverse('Hello World');

// dlroW olleH

Str::singular()​

The Str::singular method converts a string to its singular form. This function supports any of the languages support by Laravel's pluralizer:

use Illuminate\Support\Str;

$singular = Str::singular('cars');

// car

$singular = Str::singular('children');

// child

Str::slug()​

The Str::slug method generates a URL friendly "slug" from the given string:

use Illuminate\Support\Str;

$slug = Str::slug('Laravel 5 Framework', '-');

// laravel-5-framework

Str::snake()​

The Str::snake method converts the given string to snake_case:

use Illuminate\Support\Str;

$converted = Str::snake('fooBar');

// foo_bar

$converted = Str::snake('fooBar', '-');

// foo-bar

Str::squish()​

The Str::squish method removes all extraneous white space from a string, including extraneous white space between words:

use Illuminate\Support\Str;

$string = Str::squish('    laravel    framework    ');

// laravel framework

Str::start()​

The Str::start method adds a single instance of the given value to a string if it does not already start with that value:

use Illuminate\Support\Str;

$adjusted = Str::start('this/string', '/');

// /this/string

$adjusted = Str::start('/this/string', '/');

// /this/string

Str::startsWith()​

The Str::startsWith method determines if the given string begins with the given value:

use Illuminate\Support\Str;

$result = Str::startsWith('This is my name', 'This');

// true

If an array of possible values is passed, the startsWith method will return true if the string begins with any of the given values:

$result = Str::startsWith('This is my name', ['This', 'That', 'There']);

// true

Str::studly()​

The Str::studly method converts the given string to StudlyCase:

use Illuminate\Support\Str;

$converted = Str::studly('foo_bar');

// FooBar

Str::substr()​

The Str::substr method returns the portion of string specified by the start and length parameters:

use Illuminate\Support\Str;

$converted = Str::substr('The Laravel Framework', 4, 7);

// Laravel

Str::substrCount()​

The Str::substrCount method returns the number of occurrences of a given value in the given string:

use Illuminate\Support\Str;

$count = Str::substrCount('If you like ice cream, you will like snow cones.', 'like');

// 2

Str::substrReplace()​

The Str::substrReplace method replaces text within a portion of a string, starting at the position specified by the third argument and replacing the number of characters specified by the fourth argument. Passing 0 to the method's fourth argument will insert the string at the specified position without replacing any of the existing characters in the string:

use Illuminate\Support\Str;

$result = Str::substrReplace('1300', ':', 2);
// 13:

$result = Str::substrReplace('1300', ':', 2, 0);
// 13:00

Str::swap()​

The Str::swap method replaces multiple values in the given string using PHP's strtr function:

use Illuminate\Support\Str;

$string = Str::swap([
    'Tacos' => 'Burritos',
    'great' => 'fantastic',
], 'Tacos are great!');

// Burritos are fantastic!

Str::take()​

The Str::take method returns a specified number of characters from the beginning of a string:

use Illuminate\Support\Str;

$taken = Str::take('Build something amazing!', 5);

// Build

Str::title()​

The Str::title method converts the given string to Title Case:

use Illuminate\Support\Str;

$converted = Str::title('a nice title uses the correct case');

// A Nice Title Uses The Correct Case

Str::toBase64()​

The Str::toBase64 method converts the given string to Base64:

use Illuminate\Support\Str;

$base64 = Str::toBase64('Laravel');

// TGFyYXZlbA==

Str::toHtmlString()​

The Str::toHtmlString method converts the string instance to an instance of Illuminate\Support\HtmlString, which may be displayed in Blade templates:

use Illuminate\Support\Str;

$htmlString = Str::of('Nuno Maduro')->toHtmlString();

Str::transliterate()​

The Str::transliterate method will attempt to convert a given string into its closest ASCII representation:

use Illuminate\Support\Str;

$email = Str::transliterate('ⓣⓔⓢⓣ@ⓛⓐⓡⓐⓥⓔⓛ.ⓒⓞⓜ');

// 'test@laravel.com'

Str::trim()​

The Str::trim method strips whitespace (or other characters) from the beginning and end of the given string. Unlike PHP's native trim function, the Str::trim method also removes unicode whitespace characters:

use Illuminate\Support\Str;

$string = Str::trim(' foo bar ');

// 'foo bar'

Str::ltrim()​

The Str::ltrim method strips whitespace (or other characters) from the beginning of the given string. Unlike PHP's native ltrim function, the Str::ltrim method also removes unicode whitespace characters:

use Illuminate\Support\Str;

$string = Str::ltrim('  foo bar  ');

// 'foo bar  '

Str::rtrim()​

The Str::rtrim method strips whitespace (or other characters) from the end of the given string. Unlike PHP's native rtrim function, the Str::rtrim method also removes unicode whitespace characters:

use Illuminate\Support\Str;

$string = Str::rtrim('  foo bar  ');

// '  foo bar'

Str::ucfirst()​

The Str::ucfirst method returns the given string with the first character capitalized:

use Illuminate\Support\Str;

$string = Str::ucfirst('foo bar');

// Foo bar

Str::ucsplit()​

The Str::ucsplit method splits the given string into an array by uppercase characters:

use Illuminate\Support\Str;

$segments = Str::ucsplit('FooBar');

// [0 => 'Foo', 1 => 'Bar']

Str::upper()​

The Str::upper method converts the given string to uppercase:

use Illuminate\Support\Str;

$string = Str::upper('laravel');

// LARAVEL

Str::ulid()​

The Str::ulid method generates a ULID, which is a compact, time-ordered unique identifier:

use Illuminate\Support\Str;

return (string) Str::ulid();

// 01gd6r360bp37zj17nxb55yv40

If you would like to retrieve a Illuminate\Support\Carbon date instance representing the date and time that a given ULID was created, you may use the createFromId method provided by Laravel's Carbon integration:

use Illuminate\Support\Carbon;
use Illuminate\Support\Str;

$date = Carbon::createFromId((string) Str::ulid());

During testing, it may be useful to "fake" the value that is returned by the Str::ulid method. To accomplish this, you may use the createUlidsUsing method:

use Symfony\Component\Uid\Ulid;

Str::createUlidsUsing(function () {
    return new Ulid('01HRDBNHHCKNW2AK4Z29SN82T9');
});

To instruct the ulid method to return to generating ULIDs normally, you may invoke the createUlidsNormally method:

Str::createUlidsNormally();

Str::unwrap()​

The Str::unwrap method removes the specified strings from the beginning and end of a given string:

use Illuminate\Support\Str;

Str::unwrap('-Laravel-', '-');

// Laravel

Str::unwrap('{framework: "Laravel"}', '{', '}');

// framework: "Laravel"

Str::uuid()​

The Str::uuid method generates a UUID (version 4):

use Illuminate\Support\Str;

return (string) Str::uuid();

During testing, it may be useful to "fake" the value that is returned by the Str::uuid method. To accomplish this, you may use the createUuidsUsing method:

use Ramsey\Uuid\Uuid;

Str::createUuidsUsing(function () {
    return Uuid::fromString('eadbfeac-5258-45c2-bab7-ccb9b5ef74f9');
});

To instruct the uuid method to return to generating UUIDs normally, you may invoke the createUuidsNormally method:

Str::createUuidsNormally();

Str::wordCount()​

The Str::wordCount method returns the number of words that a string contains:

use Illuminate\Support\Str;

Str::wordCount('Hello, world!'); // 2

Str::wordWrap()​

The Str::wordWrap method wraps a string to a given number of characters:

use Illuminate\Support\Str;

$text = "The quick brown fox jumped over the lazy dog."

Str::wordWrap($text, characters: 20, break: "<br />\n");

/*
The quick brown fox<br />
jumped over the lazy<br />
dog.
*/

Str::words()​

The Str::words method limits the number of words in a string. An additional string may be passed to this method via its third argument to specify which string should be appended to the end of the truncated string:

use Illuminate\Support\Str;

return Str::words('Perfectly balanced, as all things should be.', 3, ' >>>');

// Perfectly balanced, as >>>

Str::wrap()​

The Str::wrap method wraps the given string with an additional string or pair of strings:

use Illuminate\Support\Str;

Str::wrap('Laravel', '"');

// "Laravel"

Str::wrap('is', before: 'This ', after: ' Laravel!');

// This is Laravel!

str()​

The str function returns a new Illuminate\Support\Stringable instance of the given string. This function is equivalent to the Str::of method:

$string = str('Taylor')->append(' Otwell');

// 'Taylor Otwell'

If no argument is provided to the str function, the function returns an instance of Illuminate\Support\Str:

$snake = str()->snake('FooBar');

// 'foo_bar'

trans()​

The trans function translates the given translation key using your language files:

echo trans('messages.welcome');

If the specified translation key does not exist, the trans function will return the given key. So, using the example above, the trans function would return messages.welcome if the translation key does not exist.

trans_choice()​

The trans_choice function translates the given translation key with inflection:

echo trans_choice('messages.notifications', $unreadCount);

If the specified translation key does not exist, the trans_choice function will return the given key. So, using the example above, the trans_choice function would return messages.notifications if the translation key does not exist.

Fluent Strings​

Fluent strings provide a more fluent, object-oriented interface for working with string values, allowing you to chain multiple string operations together using a more readable syntax compared to traditional string operations.

after​

The after method returns everything after the given value in a string. The entire string will be returned if the value does not exist within the string:

use Illuminate\Support\Str;

$slice = Str::of('This is my name')->after('This is');

// ' my name'

afterLast​

The afterLast method returns everything after the last occurrence of the given value in a string. The entire string will be returned if the value does not exist within the string:

use Illuminate\Support\Str;

$slice = Str::of('App\Http\Controllers\Controller')->afterLast('\\');

// 'Controller'

apa​

The apa method converts the given string to title case following the APA guidelines:

use Illuminate\Support\Str;

$converted = Str::of('a nice title uses the correct case')->apa();

// A Nice Title Uses the Correct Case

append​

The append method appends the given values to the string:

use Illuminate\Support\Str;

$string = Str::of('Taylor')->append(' Otwell');

// 'Taylor Otwell'

ascii​

The ascii method will attempt to transliterate the string into an ASCII value:

use Illuminate\Support\Str;

$string = Str::of('ü')->ascii();

// 'u'

basename​

The basename method will return the trailing name component of the given string:

use Illuminate\Support\Str;

$string = Str::of('/foo/bar/baz')->basename();

// 'baz'

If needed, you may provide an "extension" that will be removed from the trailing component:

use Illuminate\Support\Str;

$string = Str::of('/foo/bar/baz.jpg')->basename('.jpg');

// 'baz'

before​

The before method returns everything before the given value in a string:

use Illuminate\Support\Str;

$slice = Str::of('This is my name')->before('my name');

// 'This is '

beforeLast​

The beforeLast method returns everything before the last occurrence of the given value in a string:

use Illuminate\Support\Str;

$slice = Str::of('This is my name')->beforeLast('is');

// 'This '

between​

The between method returns the portion of a string between two values:

use Illuminate\Support\Str;

$converted = Str::of('This is my name')->between('This', 'name');

// ' is my '

betweenFirst​

The betweenFirst method returns the smallest possible portion of a string between two values:

use Illuminate\Support\Str;

$converted = Str::of('[a] bc [d]')->betweenFirst('[', ']');

// 'a'

camel​

The camel method converts the given string to camelCase:

use Illuminate\Support\Str;

$converted = Str::of('foo_bar')->camel();

// 'fooBar'

charAt​

The charAt method returns the character at the specified index. If the index is out of bounds, false is returned:

use Illuminate\Support\Str;

$character = Str::of('This is my name.')->charAt(6);

// 's'

classBasename​

The classBasename method returns the class name of the given class with the class's namespace removed:

use Illuminate\Support\Str;

$class = Str::of('Foo\Bar\Baz')->classBasename();

// 'Baz'

chopStart​

The chopStart method removes the first occurrence of the given value only if the value appears at the start of the string:

use Illuminate\Support\Str;

$url = Str::of('https://laravel.com')->chopStart('https://');

// 'laravel.com'

You may also pass an array. If the string starts with any of the values in the array then that value will be removed from string:

use Illuminate\Support\Str;

$url = Str::of('http://laravel.com')->chopStart(['https://', 'http://']);

// 'laravel.com'

chopEnd​

The chopEnd method removes the last occurrence of the given value only if the value appears at the end of the string:

use Illuminate\Support\Str;

$url = Str::of('https://laravel.com')->chopEnd('.com');

// 'https://laravel'

You may also pass an array. If the string ends with any of the values in the array then that value will be removed from string:

use Illuminate\Support\Str;

$url = Str::of('http://laravel.com')->chopEnd(['.com', '.io']);

// 'http://laravel'

contains​

The contains method determines if the given string contains the given value. By default this method is case sensitive:

use Illuminate\Support\Str;

$contains = Str::of('This is my name')->contains('my');

// true

You may also pass an array of values to determine if the given string contains any of the values in the array:

use Illuminate\Support\Str;

$contains = Str::of('This is my name')->contains(['my', 'foo']);

// true

You can disable case sensitivity by setting the ignoreCase argument to true:

use Illuminate\Support\Str;

$contains = Str::of('This is my name')->contains('MY', ignoreCase: true);

// true

containsAll​

The containsAll method determines if the given string contains all of the values in the given array:

use Illuminate\Support\Str;

$containsAll = Str::of('This is my name')->containsAll(['my', 'name']);

// true

You can disable case sensitivity by setting the ignoreCase argument to true:

use Illuminate\Support\Str;

$containsAll = Str::of('This is my name')->containsAll(['MY', 'NAME'], ignoreCase: true);

// true

dirname​

The dirname method returns the parent directory portion of the given string:

use Illuminate\Support\Str;

$string = Str::of('/foo/bar/baz')->dirname();

// '/foo/bar'

If necessary, you may specify how many directory levels you wish to trim from the string:

use Illuminate\Support\Str;

$string = Str::of('/foo/bar/baz')->dirname(2);

// '/foo'

excerpt​

The excerpt method extracts an excerpt from the string that matches the first instance of a phrase within that string:

use Illuminate\Support\Str;

$excerpt = Str::of('This is my name')->excerpt('my', [
    'radius' => 3
]);

// '...is my na...'

The radius option, which defaults to 100, allows you to define the number of characters that should appear on each side of the truncated string.

In addition, you may use the omission option to change the string that will be prepended and appended to the truncated string:

use Illuminate\Support\Str;

$excerpt = Str::of('This is my name')->excerpt('name', [
    'radius' => 3,
    'omission' => '(...) '
]);

// '(...) my name'

endsWith​

The endsWith method determines if the given string ends with the given value:

use Illuminate\Support\Str;

$result = Str::of('This is my name')->endsWith('name');

// true

You may also pass an array of values to determine if the given string ends with any of the values in the array:

use Illuminate\Support\Str;

$result = Str::of('This is my name')->endsWith(['name', 'foo']);

// true

$result = Str::of('This is my name')->endsWith(['this', 'foo']);

// false

exactly​

The exactly method determines if the given string is an exact match with another string:

use Illuminate\Support\Str;

$result = Str::of('Laravel')->exactly('Laravel');

// true

explode​

The explode method splits the string by the given delimiter and returns a collection containing each section of the split string:

use Illuminate\Support\Str;

$collection = Str::of('foo bar baz')->explode(' ');

// collect(['foo', 'bar', 'baz'])

finish​

The finish method adds a single instance of the given value to a string if it does not already end with that value:

use Illuminate\Support\Str;

$adjusted = Str::of('this/string')->finish('/');

// this/string/

$adjusted = Str::of('this/string/')->finish('/');

// this/string/

headline​

The headline method will convert strings delimited by casing, hyphens, or underscores into a space delimited string with each word's first letter capitalized:

use Illuminate\Support\Str;

$headline = Str::of('taylor_otwell')->headline();

// Taylor Otwell

$headline = Str::of('EmailNotificationSent')->headline();

// Email Notification Sent

inlineMarkdown​

The inlineMarkdown method converts GitHub flavored Markdown into inline HTML using CommonMark. However, unlike the markdown method, it does not wrap all generated HTML in a block-level element:

use Illuminate\Support\Str;

$html = Str::of('**Laravel**')->inlineMarkdown();

// <strong>Laravel</strong>

Markdown Security​

By default, Markdown supports raw HTML, which will expose Cross-Site Scripting (XSS) vulnerabilities when used with raw user input. As per the CommonMark Security documentation, you may use the html_input option to either escape or strip raw HTML, and the allow_unsafe_links option to specify whether to allow unsafe links. If you need to allow some raw HTML, you should pass your compiled Markdown through an HTML Purifier:

use Illuminate\Support\Str;

Str::of('Inject: <script>alert("Hello XSS!");</script>')->inlineMarkdown([
    'html_input' => 'strip',
    'allow_unsafe_links' => false,
]);

// Inject: alert(&quot;Hello XSS!&quot;);

is​

The is method determines if a given string matches a given pattern. Asterisks may be used as wildcard values

use Illuminate\Support\Str;

$matches = Str::of('foobar')->is('foo*');

// true

$matches = Str::of('foobar')->is('baz*');

// false

isAscii​

The isAscii method determines if a given string is an ASCII string:

use Illuminate\Support\Str;

$result = Str::of('Taylor')->isAscii();

// true

$result = Str::of('ü')->isAscii();

// false

isEmpty​

The isEmpty method determines if the given string is empty:

use Illuminate\Support\Str;

$result = Str::of('  ')->trim()->isEmpty();

// true

$result = Str::of('Laravel')->trim()->isEmpty();

// false

isNotEmpty​

The isNotEmpty method determines if the given string is not empty:

use Illuminate\Support\Str;

$result = Str::of('  ')->trim()->isNotEmpty();

// false

$result = Str::of('Laravel')->trim()->isNotEmpty();

// true

isJson​

The isJson method determines if a given string is valid JSON:

use Illuminate\Support\Str;

$result = Str::of('[1,2,3]')->isJson();

// true

$result = Str::of('{"first": "John", "last": "Doe"}')->isJson();

// true

$result = Str::of('{first: "John", last: "Doe"}')->isJson();

// false

isUlid​

The isUlid method determines if a given string is a ULID:

use Illuminate\Support\Str;

$result = Str::of('01gd6r360bp37zj17nxb55yv40')->isUlid();

// true

$result = Str::of('Taylor')->isUlid();

// false

isUrl​

The isUrl method determines if a given string is a URL:

use Illuminate\Support\Str;

$result = Str::of('http://example.com')->isUrl();

// true

$result = Str::of('Taylor')->isUrl();

// false

The isUrl method considers a wide range of protocols as valid. However, you may specify the protocols that should be considered valid by providing them to the isUrl method:

$result = Str::of('http://example.com')->isUrl(['http', 'https']);

isUuid​

The isUuid method determines if a given string is a UUID:

use Illuminate\Support\Str;

$result = Str::of('5ace9ab9-e9cf-4ec6-a19d-5881212a452c')->isUuid();

// true

$result = Str::of('Taylor')->isUuid();

// false

kebab​

The kebab method converts the given string to kebab-case:

use Illuminate\Support\Str;

$converted = Str::of('fooBar')->kebab();

// foo-bar

lcfirst​

The lcfirst method returns the given string with the first character lowercased:

use Illuminate\Support\Str;

$string = Str::of('Foo Bar')->lcfirst();

// foo Bar

length​

The length method returns the length of the given string:

use Illuminate\Support\Str;

$length = Str::of('Laravel')->length();

// 7

limit​

The limit method truncates the given string to the specified length:

use Illuminate\Support\Str;

$truncated = Str::of('The quick brown fox jumps over the lazy dog')->limit(20);

// The quick brown fox...

You may also pass a second argument to change the string that will be appended to the end of the truncated string:

$truncated = Str::of('The quick brown fox jumps over the lazy dog')->limit(20, ' (...)');

// The quick brown fox (...)

If you would like to preserve complete words when truncating the string, you may utilize the preserveWords argument. When this argument is true, the string will be truncated to the nearest complete word boundary:

$truncated = Str::of('The quick brown fox')->limit(12, preserveWords: true);

// The quick...

lower​

The lower method converts the given string to lowercase:

use Illuminate\Support\Str;

$result = Str::of('LARAVEL')->lower();

// 'laravel'

markdown​

The markdown method converts GitHub flavored Markdown into HTML:

use Illuminate\Support\Str;

$html = Str::of('# Laravel')->markdown();

// <h1>Laravel</h1>

$html = Str::of('# Taylor <b>Otwell</b>')->markdown([
    'html_input' => 'strip',
]);

// <h1>Taylor Otwell</h1>

Markdown Security​

By default, Markdown supports raw HTML, which will expose Cross-Site Scripting (XSS) vulnerabilities when used with raw user input. As per the CommonMark Security documentation, you may use the html_input option to either escape or strip raw HTML, and the allow_unsafe_links option to specify whether to allow unsafe links. If you need to allow some raw HTML, you should pass your compiled Markdown through an HTML Purifier:

use Illuminate\Support\Str;

Str::of('Inject: <script>alert("Hello XSS!");</script>')->markdown([
    'html_input' => 'strip',
    'allow_unsafe_links' => false,
]);

// <p>Inject: alert(&quot;Hello XSS!&quot;);</p>

mask​

The mask method masks a portion of a string with a repeated character, and may be used to obfuscate segments of strings such as email addresses and phone numbers:

use Illuminate\Support\Str;

$string = Str::of('taylor@example.com')->mask('*', 3);

// tay***************

If needed, you may provide negative numbers as the third or fourth argument to the mask method, which will instruct the method to begin masking at the given distance from the end of the string:

$string = Str::of('taylor@example.com')->mask('*', -15, 3);

// tay***@example.com

$string = Str::of('taylor@example.com')->mask('*', 4, -4);

// tayl**********.com

match​

The match method will return the portion of a string that matches a given regular expression pattern:

use Illuminate\Support\Str;

$result = Str::of('foo bar')->match('/bar/');

// 'bar'

$result = Str::of('foo bar')->match('/foo (.*)/');

// 'bar'

matchAll​

The matchAll method will return a collection containing the portions of a string that match a given regular expression pattern:

use Illuminate\Support\Str;

$result = Str::of('bar foo bar')->matchAll('/bar/');

// collect(['bar', 'bar'])

If you specify a matching group within the expression, Laravel will return a collection of the first matching group's matches:

use Illuminate\Support\Str;

$result = Str::of('bar fun bar fly')->matchAll('/f(\w*)/');

// collect(['un', 'ly']);

If no matches are found, an empty collection will be returned.

isMatch​

The isMatch method will return true if the string matches a given regular expression:

use Illuminate\Support\Str;

$result = Str::of('foo bar')->isMatch('/foo (.*)/');

// true

$result = Str::of('laravel')->isMatch('/foo (.*)/');

// false

newLine​

The newLine method appends an "end of line" character to a string:

use Illuminate\Support\Str;

$padded = Str::of('Laravel')->newLine()->append('Framework');

// 'Laravel
//  Framework'

padBoth​

The padBoth method wraps PHP's str_pad function, padding both sides of a string with another string until the final string reaches the desired length:

use Illuminate\Support\Str;

$padded = Str::of('James')->padBoth(10, '_');

// '__James___'

$padded = Str::of('James')->padBoth(10);

// '  James   '

padLeft​

The padLeft method wraps PHP's str_pad function, padding the left side of a string with another string until the final string reaches the desired length:

use Illuminate\Support\Str;

$padded = Str::of('James')->padLeft(10, '-=');

// '-=-=-James'

$padded = Str::of('James')->padLeft(10);

// '     James'

padRight​

The padRight method wraps PHP's str_pad function, padding the right side of a string with another string until the final string reaches the desired length:

use Illuminate\Support\Str;

$padded = Str::of('James')->padRight(10, '-');

// 'James-----'

$padded = Str::of('James')->padRight(10);

// 'James     '

pipe​

The pipe method allows you to transform the string by passing its current value to the given callable:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$hash = Str::of('Laravel')->pipe('md5')->prepend('Checksum: ');

// 'Checksum: a5c95b86291ea299fcbe64458ed12702'

$closure = Str::of('foo')->pipe(function (Stringable $str) {
    return 'bar';
});

// 'bar'

plural​

The plural method converts a singular word string to its plural form. This function supports any of the languages support by Laravel's pluralizer:

use Illuminate\Support\Str;

$plural = Str::of('car')->plural();

// cars

$plural = Str::of('child')->plural();

// children

You may provide an integer as a second argument to the function to retrieve the singular or plural form of the string:

use Illuminate\Support\Str;

$plural = Str::of('child')->plural(2);

// children

$plural = Str::of('child')->plural(1);

// child

position​

The position method returns the position of the first occurrence of a substring in a string. If the substring does not exist within the string, false is returned:

use Illuminate\Support\Str;

$position = Str::of('Hello, World!')->position('Hello');

// 0

$position = Str::of('Hello, World!')->position('W');

// 7

prepend​

The prepend method prepends the given values onto the string:

use Illuminate\Support\Str;

$string = Str::of('Framework')->prepend('Laravel ');

// Laravel Framework

remove​

The remove method removes the given value or array of values from the string:

use Illuminate\Support\Str;

$string = Str::of('Arkansas is quite beautiful!')->remove('quite');

// Arkansas is beautiful!

You may also pass false as a second parameter to ignore case when removing strings.

repeat​

The repeat method repeats the given string:

use Illuminate\Support\Str;

$repeated = Str::of('a')->repeat(5);

// aaaaa

replace​

The replace method replaces a given string within the string:

use Illuminate\Support\Str;

$replaced = Str::of('Laravel 6.x')->replace('6.x', '7.x');

// Laravel 7.x

The replace method also accepts a caseSensitive argument. By default, the replace method is case sensitive:

$replaced = Str::of('macOS 13.x')->replace(
    'macOS', 'iOS', caseSensitive: false
);

replaceArray​

The replaceArray method replaces a given value in the string sequentially using an array:

use Illuminate\Support\Str;

$string = 'The event will take place between ? and ?';

$replaced = Str::of($string)->replaceArray('?', ['8:30', '9:00']);

// The event will take place between 8:30 and 9:00

replaceFirst​

The replaceFirst method replaces the first occurrence of a given value in a string:

use Illuminate\Support\Str;

$replaced = Str::of('the quick brown fox jumps over the lazy dog')->replaceFirst('the', 'a');

// a quick brown fox jumps over the lazy dog

replaceLast​

The replaceLast method replaces the last occurrence of a given value in a string:

use Illuminate\Support\Str;

$replaced = Str::of('the quick brown fox jumps over the lazy dog')->replaceLast('the', 'a');

// the quick brown fox jumps over a lazy dog

replaceMatches​

The replaceMatches method replaces all portions of a string matching a pattern with the given replacement string:

use Illuminate\Support\Str;

$replaced = Str::of('(+1) 501-555-1000')->replaceMatches('/[^A-Za-z0-9]++/', '')

// '15015551000'

The replaceMatches method also accepts a closure that will be invoked with each portion of the string matching the given pattern, allowing you to perform the replacement logic within the closure and return the replaced value:

use Illuminate\Support\Str;

$replaced = Str::of('123')->replaceMatches('/\d/', function (array $matches) {
    return '['.$matches[0].']';
});

// '[1][2][3]'

replaceStart​

The replaceStart method replaces the first occurrence of the given value only if the value appears at the start of the string:

use Illuminate\Support\Str;

$replaced = Str::of('Hello World')->replaceStart('Hello', 'Laravel');

// Laravel World

$replaced = Str::of('Hello World')->replaceStart('World', 'Laravel');

// Hello World

replaceEnd​

The replaceEnd method replaces the last occurrence of the given value only if the value appears at the end of the string:

use Illuminate\Support\Str;

$replaced = Str::of('Hello World')->replaceEnd('World', 'Laravel');

// Hello Laravel

$replaced = Str::of('Hello World')->replaceEnd('Hello', 'Laravel');

// Hello World

scan​

The scan method parses input from a string into a collection according to a format supported by the sscanf PHP function:

use Illuminate\Support\Str;

$collection = Str::of('filename.jpg')->scan('%[^.].%s');

// collect(['filename', 'jpg'])

singular​

The singular method converts a string to its singular form. This function supports any of the languages support by Laravel's pluralizer:

use Illuminate\Support\Str;

$singular = Str::of('cars')->singular();

// car

$singular = Str::of('children')->singular();

// child

slug​

The slug method generates a URL friendly "slug" from the given string:

use Illuminate\Support\Str;

$slug = Str::of('Laravel Framework')->slug('-');

// laravel-framework

snake​

The snake method converts the given string to snake_case:

use Illuminate\Support\Str;

$converted = Str::of('fooBar')->snake();

// foo_bar

split​

The split method splits a string into a collection using a regular expression:

use Illuminate\Support\Str;

$segments = Str::of('one, two, three')->split('/[\s,]+/');

// collect(["one", "two", "three"])

squish​

The squish method removes all extraneous white space from a string, including extraneous white space between words:

use Illuminate\Support\Str;

$string = Str::of('    laravel    framework    ')->squish();

// laravel framework

start​

The start method adds a single instance of the given value to a string if it does not already start with that value:

use Illuminate\Support\Str;

$adjusted = Str::of('this/string')->start('/');

// /this/string

$adjusted = Str::of('/this/string')->start('/');

// /this/string

startsWith​

The startsWith method determines if the given string begins with the given value:

use Illuminate\Support\Str;

$result = Str::of('This is my name')->startsWith('This');

// true

stripTags​

The stripTags method removes all HTML and PHP tags from a string:

use Illuminate\Support\Str;

$result = Str::of('<a href="https://laravel.com">Taylor <b>Otwell</b></a>')->stripTags();

// Taylor Otwell

$result = Str::of('<a href="https://laravel.com">Taylor <b>Otwell</b></a>')->stripTags('<b>');

// Taylor <b>Otwell</b>

studly​

The studly method converts the given string to StudlyCase:

use Illuminate\Support\Str;

$converted = Str::of('foo_bar')->studly();

// FooBar

substr​

The substr method returns the portion of the string specified by the given start and length parameters:

use Illuminate\Support\Str;

$string = Str::of('Laravel Framework')->substr(8);

// Framework

$string = Str::of('Laravel Framework')->substr(8, 5);

// Frame

substrReplace​

The substrReplace method replaces text within a portion of a string, starting at the position specified by the second argument and replacing the number of characters specified by the third argument. Passing 0 to the method's third argument will insert the string at the specified position without replacing any of the existing characters in the string:

use Illuminate\Support\Str;

$string = Str::of('1300')->substrReplace(':', 2);

// 13:

$string = Str::of('The Framework')->substrReplace(' Laravel', 3, 0);

// The Laravel Framework

swap​

The swap method replaces multiple values in the string using PHP's strtr function:

use Illuminate\Support\Str;

$string = Str::of('Tacos are great!')
    ->swap([
        'Tacos' => 'Burritos',
        'great' => 'fantastic',
    ]);

// Burritos are fantastic!

take​

The take method returns a specified number of characters from the beginning of the string:

use Illuminate\Support\Str;

$taken = Str::of('Build something amazing!')->take(5);

// Build

tap​

The tap method passes the string to the given closure, allowing you to examine and interact with the string while not affecting the string itself. The original string is returned by the tap method regardless of what is returned by the closure:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('Laravel')
    ->append(' Framework')
    ->tap(function (Stringable $string) {
        dump('String after append: '.$string);
    })
    ->upper();

// LARAVEL FRAMEWORK

test​

The test method determines if a string matches the given regular expression pattern:

use Illuminate\Support\Str;

$result = Str::of('Laravel Framework')->test('/Laravel/');

// true

title​

The title method converts the given string to Title Case:

use Illuminate\Support\Str;

$converted = Str::of('a nice title uses the correct case')->title();

// A Nice Title Uses The Correct Case

toBase64()​

The toBase64 method converts the given string to Base64:

use Illuminate\Support\Str;

$base64 = Str::of('Laravel')->toBase64();

// TGFyYXZlbA==

transliterate​

The transliterate method will attempt to convert a given string into its closest ASCII representation:

use Illuminate\Support\Str;

$email = Str::of('ⓣⓔⓢⓣ@ⓛⓐⓡⓐⓥⓔⓛ.ⓒⓞⓜ')->transliterate()

// 'test@laravel.com'

trim​

The trim method trims the given string. Unlike PHP's native trim function, Laravel's trim method also removes unicode whitespace characters:

use Illuminate\Support\Str;

$string = Str::of('  Laravel  ')->trim();

// 'Laravel'

$string = Str::of('/Laravel/')->trim('/');

// 'Laravel'

ltrim​

The ltrim method trims the left side of the string. Unlike PHP's native ltrim function, Laravel's ltrim method also removes unicode whitespace characters:

use Illuminate\Support\Str;

$string = Str::of('  Laravel  ')->ltrim();

// 'Laravel  '

$string = Str::of('/Laravel/')->ltrim('/');

// 'Laravel/'

rtrim​

The rtrim method trims the right side of the given string. Unlike PHP's native rtrim function, Laravel's rtrim method also removes unicode whitespace characters:

use Illuminate\Support\Str;

$string = Str::of('  Laravel  ')->rtrim();

// '  Laravel'

$string = Str::of('/Laravel/')->rtrim('/');

// '/Laravel'

ucfirst​

The ucfirst method returns the given string with the first character capitalized:

use Illuminate\Support\Str;

$string = Str::of('foo bar')->ucfirst();

// Foo bar

ucsplit​

The ucsplit method splits the given string into a collection by uppercase characters:

use Illuminate\Support\Str;

$string = Str::of('Foo Bar')->ucsplit();

// collect(['Foo', 'Bar'])

unwrap​

The unwrap method removes the specified strings from the beginning and end of a given string:

use Illuminate\Support\Str;

Str::of('-Laravel-')->unwrap('-');

// Laravel

Str::of('{framework: "Laravel"}')->unwrap('{', '}');

// framework: "Laravel"

upper​

The upper method converts the given string to uppercase:

use Illuminate\Support\Str;

$adjusted = Str::of('laravel')->upper();

// LARAVEL

when​

The when method invokes the given closure if a given condition is true. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('Taylor')
                ->when(true, function (Stringable $string) {
                    return $string->append(' Otwell');
                });

// 'Taylor Otwell'

If necessary, you may pass another closure as the third parameter to the when method. This closure will execute if the condition parameter evaluates to false.

whenContains​

The whenContains method invokes the given closure if the string contains the given value. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('tony stark')
            ->whenContains('tony', function (Stringable $string) {
                return $string->title();
            });

// 'Tony Stark'

If necessary, you may pass another closure as the third parameter to the when method. This closure will execute if the string does not contain the given value.

You may also pass an array of values to determine if the given string contains any of the values in the array:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('tony stark')
            ->whenContains(['tony', 'hulk'], function (Stringable $string) {
                return $string->title();
            });

// Tony Stark

whenContainsAll​

The whenContainsAll method invokes the given closure if the string contains all of the given sub-strings. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('tony stark')
                ->whenContainsAll(['tony', 'stark'], function (Stringable $string) {
                    return $string->title();
                });

// 'Tony Stark'

If necessary, you may pass another closure as the third parameter to the when method. This closure will execute if the condition parameter evaluates to false.

whenEmpty​

The whenEmpty method invokes the given closure if the string is empty. If the closure returns a value, that value will also be returned by the whenEmpty method. If the closure does not return a value, the fluent string instance will be returned:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('  ')->whenEmpty(function (Stringable $string) {
    return $string->trim()->prepend('Laravel');
});

// 'Laravel'

whenNotEmpty​

The whenNotEmpty method invokes the given closure if the string is not empty. If the closure returns a value, that value will also be returned by the whenNotEmpty method. If the closure does not return a value, the fluent string instance will be returned:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('Framework')->whenNotEmpty(function (Stringable $string) {
    return $string->prepend('Laravel ');
});

// 'Laravel Framework'

whenStartsWith​

The whenStartsWith method invokes the given closure if the string starts with the given sub-string. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('disney world')->whenStartsWith('disney', function (Stringable $string) {
    return $string->title();
});

// 'Disney World'

whenEndsWith​

The whenEndsWith method invokes the given closure if the string ends with the given sub-string. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('disney world')->whenEndsWith('world', function (Stringable $string) {
    return $string->title();
});

// 'Disney World'

whenExactly​

The whenExactly method invokes the given closure if the string exactly matches the given string. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('laravel')->whenExactly('laravel', function (Stringable $string) {
    return $string->title();
});

// 'Laravel'

whenNotExactly​

The whenNotExactly method invokes the given closure if the string does not exactly match the given string. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('framework')->whenNotExactly('laravel', function (Stringable $string) {
    return $string->title();
});

// 'Framework'

whenIs​

The whenIs method invokes the given closure if the string matches a given pattern. Asterisks may be used as wildcard values. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('foo/bar')->whenIs('foo/*', function (Stringable $string) {
    return $string->append('/baz');
});

// 'foo/bar/baz'

whenIsAscii​

The whenIsAscii method invokes the given closure if the string is 7 bit ASCII. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('laravel')->whenIsAscii(function (Stringable $string) {
    return $string->title();
});

// 'Laravel'

whenIsUlid​

The whenIsUlid method invokes the given closure if the string is a valid ULID. The closure will receive the fluent string instance:

use Illuminate\Support\Str;

$string = Str::of('01gd6r360bp37zj17nxb55yv40')->whenIsUlid(function (Stringable $string) {
    return $string->substr(0, 8);
});

// '01gd6r36'

whenIsUuid​

The whenIsUuid method invokes the given closure if the string is a valid UUID. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('a0a2a2d2-0b87-4a18-83f2-2529882be2de')->whenIsUuid(function (Stringable $string) {
    return $string->substr(0, 8);
});

// 'a0a2a2d2'

whenTest​

The whenTest method invokes the given closure if the string matches the given regular expression. The closure will receive the fluent string instance:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('laravel framework')->whenTest('/laravel/', function (Stringable $string) {
    return $string->title();
});

// 'Laravel Framework'

wordCount​

The wordCount method returns the number of words that a string contains:

use Illuminate\Support\Str;

Str::of('Hello, world!')->wordCount(); // 2

words​

The words method limits the number of words in a string. If necessary, you may specify an additional string that will be appended to the truncated string:

use Illuminate\Support\Str;

$string = Str::of('Perfectly balanced, as all things should be.')->words(3, ' >>>');

// Perfectly balanced, as >>>