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<?php $arr = ["1" => "a", "2" => "b", "3" => [10 => "apple",11 => "cat", 12 => ["key" => "image" ]]]; if ( array_walk_recursive($arr, function($item,$key) { if ($key == "key") { echo "\nKey is $key and item is $item"; } })) { echo "\narray_walk_recursive rocks :)"; }
Output for git.master, git.master_jit, rfc.property-hooks
Key is key and item is image array_walk_recursive rocks :)

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