3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = array(); $y = array(); for ($i=100000; $i--;)$y[$i] =& $x; for ($i=100000; $i--;)unset($y[$i]));
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.28, 5.4.0 - 5.4.27
Parse error: syntax error, unexpected ')', expecting ';' in /in/vmsLA on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected ')', expecting ';' in /in/vmsLA on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `';'' in /in/vmsLA on line 5
Process exited with code 255.
preferences:
239.44 ms | 1395 KiB | 117 Q