3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a=1; $b=0; $c=1; $dis=''; if($a) $dis = $dis . "a"; if($b) $dis = $dis . "b"; if($c) $dis= $dis . "disposition='yes'"; print_r($dis);
Output for 4.3.0 - 7.1.0
adisposition='yes'