3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = '-ko-ok-ok-ko-'; var_dump(strchr($string, 'o')); // o-ok-ok-ko- var_dump(strrchr($string, 'o')); // o- var_dump(strchr($string, 'ok')); // ok-ok-ko- var_dump(strrchr($string, 'ok')); // Should be ok-ko-
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
string(11) "o-ok-ok-ko-" string(2) "o-" string(9) "ok-ok-ko-" string(2) "o-"

preferences:
67 ms | 406 KiB | 5 Q