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<?php $def = array('a'=>1, 'b'=>2); //////// $arr_lang = array('de' => array('a'=>3, 'c'=>4)); $arr_lang = array_merge($def , $arr_lang['a']); ////// print_r($arr_lang);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined array key "a" in /in/JJrtU on line 11 Fatal error: Uncaught TypeError: array_merge(): Argument #2 must be of type array, null given in /in/JJrtU:11 Stack trace: #0 /in/JJrtU(11): array_merge(Array, NULL) #1 {main} thrown in /in/JJrtU on line 11
Process exited with code 255.

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