3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); function stringContains(string $needle, string $haystack): bool { return strpos($haystack, $needle) !== false; } assert(stringContains('Ahoy', 'Ahoy World!') === true); assert(stringContains('Hello', 'Ahoy World!') === false); function stringStartsWith(string $needle, string $haystack): bool { return strpos($haystack, $needle) === 0; } assert(stringStartsWith('Ahoy', 'Ahoy World!') === true); assert(stringStartsWith('Hello', 'AhoyWorld') === false); function stringEndsWith(string $needle, string $haystack): bool { return strpos($haystack, $needle) === strlen($haystack) - strlen($needle); } assert(stringEndsWith('World!', 'Ahoy World!') === true); assert(stringEndsWith('Ahoy', 'Ahoy World!') === false);
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.27, 8.1.0 - 8.1.15, 8.2.0 - 8.2.2

preferences:
72.73 ms | 406 KiB | 5 Q