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run code in 150+ php & hhvm versions
Bugs & Features
<?php $data = array('first', 'second', 'third'); $pop = function () use (&$data) { list($key, $value) = $each = each($data); unset($data[$key]); var_dump($each, $key, $value); }; $pop(); $pop(); $pop(); echo "Length of data is " . count($data);
Output for 5.3.0 - 7.1.0
array(4) { [1]=> string(5) "first" ["value"]=> string(5) "first" [0]=> int(0) ["key"]=> int(0) } int(0) string(5) "first" array(4) { [1]=> string(6) "second" ["value"]=> string(6) "second" [0]=> int(1) ["key"]=> int(1) } int(1) string(6) "second" array(4) { [1]=> string(5) "third" ["value"]=> string(5) "third" [0]=> int(2) ["key"]=> int(2) } int(2) string(5) "third" Length of data is 0
Output for 5.2.3 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/5mKFb on line 5
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/5mKFb</b> on line <b>5</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/5mKFb</b> on line <b>5</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/5mKFb</b> on line <b>5</b><br />
Process exited with code 255.