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. __ 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::doesntContain Str::doesntEndWith Str::doesntStartWith Str::deduplicate Str::endsWith Str::excerpt Str::finish Str::fromBase64 Str::headline Str::initia

The polyfill that based on original work from the PHP Laravel framework had a different behavior; when the $needle is `""` or `null`: php8's will return `true`; but, laravel'str_contains will return `false`; when php8.1, null is deprecated, You can use `$needle ?: ""`; ... A couple of functions for checking if a string contains any of the strings in an array, or all of the strings in an array: <?php function str_contains_any(string $haystack, array $needles): bool { return array_reduce($needles, fn($a, $n) => $a || str_contains($haystack, $n), false); } function str_contains_all(string $haystack, array $needles): bool { return array_reduce($needles, fn($a, $n) => $a && str_contains($haystack, $n), true); } ?> str_contains_all() will return true if $needles is an empty array.

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Laravel is a PHP web application framework with expressive, elegant syntax. We've already laid the foundation — freeing you to create without sweating the small things.

May 11, 2022 - use Illuminate\Support\Str; $string = 'Laravel is the best PHP framework.'; if(Str::contains($string, ['framework', 'php'])) { echo 'true'; }

July 29, 2025 - New Validation in Laravel 12: Laravel 12 introduces a handy new validation rule: Rule::contains() – allowing you to validate if a string contains specific values with much more control and flexibility.

April 16, 2024 - Laravel has a Str helper function. Str class has contains() method that will provide to check string contains in laravel application.

November 30, 2017 - The contains method in Laravel's Illuminate\Support\Str class allows you to check if any given elements exist within a string. By passing in a string and an array of elements, the method will return true if any of the elements are found in the ...

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November 13, 2025 - $haystack = "The quick brown fox jumps over the lazy dog"; ... str_contains() is the clearest and most modern solution for checking if string contains substring in PHP 8 and newer.

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As stripos is case insensitive, it does not return a false when used to check if the PHP string contains the 'Top' substring. However, this is not the case when strpos or strrpos are used. Now, let's look at a case where the index is 0. $string = "Hire the top 1% freelance developers" $substring_index = stripos($string, "Hire"); if($substring_index != false) { echo "'Hire' is a substring"; } else { echo "'Hire' is not a substring"; } //Output = "'Hire' is not a substring" if($substring_index !== false) { echo "'Hire' is a substring"; } else { echo "'Hire' is not a substring"; } //Output = "'Hire' is a substring"

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Learn how to use Laravel's containsAll method to verify if a string includes multiple substrings with case-sensitive or case-insensitive options.

September 11, 2023 - The Str::beforeLast method returns ... If the index is out of bounds, false is returned: ... The Str::contains method determines if the given string contains the given value....