3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = 'maría'; $count = count(preg_grep("/[áéíó]/", $str)); echo $count;
based on FAY1G
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Warning: preg_grep() expects parameter 2 to be array, string given in /in/Jg4Ac on line 3 0
Output for 4.3.11 - 5.1.6
Warning: preg_grep(): Second argument to preg_grep() should be an array in /in/Jg4Ac on line 3 0
Output for 4.3.0 - 4.3.10
Warning: Second argument to preg_grep() should be an array in /in/Jg4Ac on line 3 0