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<?php $def = array('a'=>1, 'b'=>2); //////// $arr_lang = array('de' => array('a'=>3, 'c'=>4)); $arr_lang = array_map(function ($l) { return array_merge($def, $l); }, $arr_lang); ////// print_r($arr_lang);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $def in /in/Ma3kR on line 16 Fatal error: Uncaught TypeError: array_merge(): Argument #1 must be of type array, null given in /in/Ma3kR:16 Stack trace: #0 /in/Ma3kR(16): array_merge(NULL, Array) #1 [internal function]: {closure}(Array) #2 /in/Ma3kR(15): array_map(Object(Closure), Array) #3 {main} thrown in /in/Ma3kR on line 16
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Warning: Undefined variable $def in /in/Ma3kR on line 16 Fatal error: Uncaught TypeError: array_merge(): Argument #1 must be of type array, null given in /in/Ma3kR:16 Stack trace: #0 /in/Ma3kR(16): array_merge(NULL, Array) #1 [internal function]: {closure}(Array) #2 /in/Ma3kR(17): array_map(Object(Closure), Array) #3 {main} thrown in /in/Ma3kR on line 16
Process exited with code 255.
Output for 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: def in /in/Ma3kR on line 16 Warning: array_merge(): Expected parameter 1 to be an array, null given in /in/Ma3kR on line 16 Array ( [de] => )
Output for 7.3.32 - 7.3.33
Warning: array_merge(): Expected parameter 1 to be an array, null given in /in/Ma3kR on line 16 Array ( [de] => )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33
Notice: Undefined variable: def in /in/Ma3kR on line 16 Warning: array_merge(): Argument #1 is not an array in /in/Ma3kR on line 16 Array ( [de] => )
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, expecting ')' in /in/Ma3kR on line 15
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, expecting ')' in /in/Ma3kR on line 15
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/Ma3kR on line 15
Process exited with code 255.

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