Online PHP editor | refs for d4Log

<?php class Converter { public function runAllConversions(&$value) { $value = str_replace('x', 'MODIFIED', $value); } } $data = [ 'a' => 'x', 'b' => 'x', 'c' => ['x', 'a' => 'x', ['a' => 'x', 'x']], 'd' => ['x', 'b' => 'x', ['a' => 'x', 'x', ['x', 'c' => 'x', ['a' => 'x', 'x']]]] ]; array_walk_recursive($data, [new Converter(), 'runAllConversions']); print_r($data);