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run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr1 = array("a" => 1, "b" => 2, "c" => 3); $arr2 = array("x" => 4, "y" => 5, "z" => 6); foreach ($arr1 as $key => &$val) {} foreach ($arr2 as $key => $val) {} var_dump($arr1); var_dump($arr2);
Output for 5.2.1 - 7.1.0
array(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> &int(6) } array(3) { ["x"]=> int(4) ["y"]=> int(5) ["z"]=> int(6) }
Output for 5.0.0 - 5.2.0
array(3) { ["a"]=> &int(1) ["b"]=> &int(2) ["c"]=> &int(6) } array(3) { ["x"]=> int(4) ["y"]=> int(5) ["z"]=> int(6) }
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/JgUuH on line 6
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 '$' in /in/JgUuH on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/JgUuH on line 6
Process exited with code 255.