Online PHP editor | refs for K4Ln1

<?php header("Content-type: text/plain charset=UTF-8;"); $in = array( 'meta_data' => 'querysucceful!', 'size' => 15, 'resultset'=> array( array( 'name' => 'resul_1', 'aaaa' => '1a', 'bbbb' => '1b' ), array( 'name' => 'result_2', 'aaaa' => '2a', 'bbbb' => '2b' ), array( 'name' => 'result_3', 'aaaa' => '3a', 'bbbb' => '3b' ) ) ); $filter = array( 'meta_data' => FILTER_SANITIZE_STRING, 'size' => FILTER_SANITIZE_NUMBER_INT, 'resultset' => array('filter' => FILTER_CALLBACK, 'options' => 'filter_result') ); $out = filter_var_array($in, $filter); var_dump($out); function filter_result($result) { var_dump($result); return null; }