filter_has_var

(PHP 5 >= 5.2.0, PECL filter:0.11.0)

filter_has_var — Checks if variable of specified type exists

bool filter_has_var ( int $type , string $variable_name )

type: One of INPUT_GET, INPUT_POST, INPUT_COOKIE, INPUT_SERVER, INPUT_ENV.
variable_name: Name of a variable to check.

Restituisce TRUE in caso di successo, FALSE in caso di fallimento.

add a note User Contributed Notes
filter_has_var

julien dot pauli at doctorrock dot eu
08-Jan-2007 01:43


<?php

filter_has_var(INPUT_POST, 'submit')

?>

is same as 

<?php

isset($_POST['submit'])

?>

Last updated: Fri, 18 Jul 2008