3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $c=' <?php $c=\'%s\'; printf($c, addslashes($c));'; printf($c, addslashes($c)); echo 1;
based on mc9SN
Output for 4.3.0 - 7.2.0
<?php $c=' <?php $c=\'%s\'; printf($c, addslashes($c));'; printf($c, addslashes($c));1