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<?php $array = array (1=>1, 2=> 2, 3 => array(1=>11, 2=>12, 3=>13)); $text = "test"; function modarr($array, $text) { foreach ($array as $key => $arr) { if(is_array($arr)) $res[$key] = modarr($arr,$text); // modification function here else $res[$key] = $arr.$text; } return $res; } $erg = modarr($array, $text); print_r($erg);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [1] => 1test [2] => 2test [3] => Array ( [1] => 11test [2] => 12test [3] => 13test ) )

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