3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "The quick brown fox jumps over the lazy dog"; $c = 0; for($i = 1; $i < 44; $i++) { if(in_array(substr($str,$i-1,$i),array("a","e","i","o","u"))) $c++; echo substr($str,$i-1,$i)."\n"; } echo $c;

preferences:
42.44 ms | 402 KiB | 5 Q