3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
]<?php $arr = array(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8); $v = array_reduce($arr, function($x, $v) { return $x ^= $v; }); var_dump($v);
Output for 5.3.0 - 7.1.0
]int(8)
Output for 5.2.3 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/N37sB on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected T_FUNCTION in <b>/in/N37sB</b> on line <b>4</b><br />
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
<br /> <b>Parse error</b>: parse error, unexpected T_FUNCTION in <b>/in/N37sB</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/N37sB</b> on line <b>4</b><br />
Process exited with code 255.