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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>PHP Apply a Function to Every Element of an Array Recursively</title> </head> <body> <pre> <?php // Defining a callback function function myFunction($item, $key){ echo "<p>$key holds $item</p>"; } // Sample arrays $pets = array("c" => "cat", "d" => "dog"); $animals = array("pets" => $pets, "wild" => "tiger"); array_walk_recursive($animals, "myFunction"); ?> </pre> </body> </html>
