3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array('a' => 2, 'b' => 1, 'c' => 4); $temp = $array['c']; $array['c'] = $array['a']; $array['a'] = temp; print_r($array);
Output for 4.3.0 - 7.1.0
Notice: Use of undefined constant temp - assumed 'temp' in /in/YRjvg on line 6 Array ( [a] => temp [b] => 1 [c] => 2 )