3v4l.org

run code in 300+ PHP versions simultaneously
<?php function get_rand_str($len){ $result=''; $chars=preg_split('//','abcdef0123456789'); for($i=0;$i<$len;$i++) $result.=$chars[rand(0,count($chars)-1)]; return $result; } get_rand_str(256);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.13, 7.3.0 - 7.3.1
preferences:
168.73 ms | 404 KiB | 232 Q