3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $z1 = "abc"; $out = ""; for ($i = 0; $i < strlen($z1); $i++) { // $out[$i] = $z1[$i]; $out = $out.$z1[$i]; } print $out;
Output for 4.3.0 - 7.1.0
abc