3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // Source: https://bugs.php.net/bug.php?id=62476 for ($d=0; $d<100; $d++) { $a = "abc"; echo $a++; }
based on 5gdEP
Output for 4.3.0 - 7.1.0
abcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabc