<?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-
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