Pass a value into filter_input() using variable

Question

Can anyone please explain, why do I get very strange warning:

filter_input() expects parameter 1 to be long, string given

when executing the co

Answer 1

INPUT_POST and INPUT_GET are defined as follows:

/**
 * POST variables.
 * @link http://www.php.net/manual/en/filter.constants.php
 */
define ('INPUT_POST', 0);

/**
 * GET variables.
 * @link http://www.php.net/manual/en/filter.constants.php
 */
define ('INPUT_GET', 1);