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<?php $data = [ 'existant_key'=>[] ]; foreach($data['non_existant_key'] as &$row) { } print_r($data);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: foreach() argument must be of type array|object, null given in /in/UNIe4 on line 7 Array ( [existant_key] => Array ( ) [non_existant_key] => )

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