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run code in 300+ PHP versions simultaneously
<?php $array = [ ['foo' => 'a', 'bar' => 1], ['foo' => 'b', 'bar' => 2], ]; foreach ($array as ['new' => &$x, 'bar' => $x]); var_export($array);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
array ( 0 => array ( 'foo' => 'a', 'bar' => 1, 'new' => 1, ), 1 => array ( 'foo' => 'b', 'bar' => 2, 'new' => 2, ), )
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34
Fatal error: [] and list() assignments cannot be by reference in /in/PiAW9 on line 8
Process exited with code 255.
Output for 7.0.0 - 7.0.33
Parse error: syntax error, unexpected ')', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /in/PiAW9 on line 8
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '[' in /in/PiAW9 on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/PiAW9 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/PiAW9 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/PiAW9 on line 3
Process exited with code 255.

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