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run code in 300+ PHP versions simultaneously
<?php $a = array('q'=>'w','e'=>'r'); array_map($a, function() { var_dump(func_get_args()); });
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, array callback has to contain indices 0 and 1 in /in/9hfav:4 Stack trace: #0 /in/9hfav(4): array_map(Array, Object(Closure)) #1 {main} thrown in /in/9hfav on line 4
Process exited with code 255.
Output for 8.1.0 - 8.1.28
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, first array member is not a valid class name or object in /in/9hfav:6 Stack trace: #0 /in/9hfav(6): array_map(Array, Object(Closure)) #1 {main} thrown in /in/9hfav on line 6
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback, first array member is not a valid class name or object in /in/9hfav:6 Stack trace: #0 /in/9hfav(6): array_map(Array, Object(Closure)) #1 {main} thrown in /in/9hfav on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_map() expects parameter 1 to be a valid callback, first array member is not a valid class name or object in /in/9hfav on line 6
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/9hfav on line 4
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 T_FUNCTION in /in/9hfav on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9hfav on line 4
Process exited with code 255.

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