root/ext/filter/docs/input_get_args.php

<?php
error_reporting(E_ALL|E_STRICT);
$data = array(
    'product_id'        => 'product id<script>',
    'component'         => '10',
    'versions'          => '1.2.33',
        'testscalar'    => array('2','23','10','12'),
        'testarray'             => '2',
);

$args = array(
    'product_id'    => FILTER_SANITIZE_ENCODED,
    'component'     => array('filter'   => FILTER_VALIDATE_INT,
                                                         'flags'        => FILTER_FLAG_ARRAY,
                                                         'options'      => array("min_range"=>1, "max_range"=>10)
                                                ),

        /* equivalent of => FILTER_SANITIZE_ENCODED as SCALAR is
         * the default mode
     */
    'versions'      => array(
                            'filter' => FILTER_SANITIZE_ENCODED,
                            'flags'  => FILTER_FLAG_SCALAR,
                                                        ),
        'doesnotexist'  => FILTER_VALIDATE_INT,
        'testscalar'    => FILTER_VALIDATE_INT,
        'testarray'     => array(
                                                        'filter' => FILTER_VALIDATE_INT,
                                                        'flags'  => FILTER_FLAG_ARRAY,
                                                )

);

/*
The other INPUT_* can be used as well.
$myinputs = input_get_args($args, INPUT_POST);
*/
$myinputs = input_get_args($args, INPUT_DATA, $data);

var_dump($myinputs);