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run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array(array('a','b'),array('c','d')); $assoc_arr = array_reduce($arr, function ($result, $item) { $result[$item[0]] = $item return $result; }, array()); var_dump($assoc_arr);
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.4.14
Parse error: syntax error, unexpected 'return' (T_RETURN) in /in/EnvX0 on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.24
Parse error: syntax error, unexpected T_RETURN in /in/EnvX0 on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/EnvX0 on line 3
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
Parse error: parse error, unexpected T_FUNCTION in /in/EnvX0 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/EnvX0 on line 3
Process exited with code 255.