3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a1 = array('a1','a2', 'a3','a4'); //$result=""; foreach ($a1 as $a2) { $result.='"'.$a2.'"'.','; } echo $result;
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: result in /in/aGLRK on line 6 "a1","a2","a3","a4",
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: result in /in/aGLRK on line 6 "a1","a2","a3","a4",