Online PHP editor | refs for d4OpK

<?php function myIsset($value) { return isset($value); } $array1 = array( 'str' => 'foo', 'null1' => null, 'null2' => null, 'bool' => true, ); $filtered_array1 = array_filter($array1, 'myIsset'); var_dump($array1, $filtered_array1); $array2 = $array1; $array2['bool'] = false; $filtered_array2 = array_filter($array2, 'myIsset'); var_dump($array2, $filtered_array2);