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run code in 200+ php & hhvm versions
Bugs & Features
<?php function &gen($vals) { $func = function ($i) {return $i; }; foreach($vals as $val) { yield $func($val); } } $values = [1, 2, 3, 4, 5]; foreach(gen($values) as &$value) { $value *= 2; } var_dump($values);
Output for 5.5.24 - 7.2.0
Notice: Only variable references should be yielded by reference in /in/VOYiT on line 9 Notice: Only variable references should be yielded by reference in /in/VOYiT on line 9 Notice: Only variable references should be yielded by reference in /in/VOYiT on line 9 Notice: Only variable references should be yielded by reference in /in/VOYiT on line 9 Notice: Only variable references should be yielded by reference in /in/VOYiT on line 9 array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) }
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$func' (T_VARIABLE) in /in/VOYiT on line 9
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_VARIABLE in /in/VOYiT on line 9
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/VOYiT on line 6
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/VOYiT on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/VOYiT on line 6
Process exited with code 255.