3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(&$a); function fill (&$a, $i = 3) { if (!$i--) return; foreach ($a as &$tmp) { $tmp = array($tmp ,&$a); echo '.'; return; fill($tmp, $i); } } fill($a);
Output for 5.0.0 - 7.1.0
.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/kBhUC on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/kBhUC on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/kBhUC on line 5
Process exited with code 255.