3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function f(&$a) {} function &g($a) { $v = $a; return $v; } $a = function() {}; f(intval(true));
Output for 5.3.0 - 5.4.45, 7.1.0
Output for 7.0.0 - 7.0.14
Notice: Only variables should be passed by reference in /in/CSlSH on line 8
Output for hhvm-3.10.0 - 3.12.0
Fatal error: Cannot pass parameter 1 by reference in /in/CSlSH on line 8
Process exited with code 255.
Output for 5.5.0 - 5.6.21
Strict Standards: Only variables should be passed by reference in /in/CSlSH on line 8
Output for 5.2.3 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/CSlSH on line 6
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/CSlSH</b> on line <b>6</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/CSlSH</b> on line <b>6</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/CSlSH</b> on line <b>6</b><br />
Process exited with code 255.