3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = []; $arr[0] = null; $arr[2] = 2; $arr[1] = 1; $arr[0] = 0; foreach ($arr as $elem) { echo "$elem "; } // prints "2 1 0" !!
based on DUtlu
Output for 5.4.0 - 7.1.0
0 2 1
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/80h7O on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/80h7O on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/80h7O on line 2
Process exited with code 255.