filter_has_var

(PHP 5 >= 5.2.0, PHP 7)

filter_has_var — Checks if variable of specified type exists

Description

filter_has_var ( int $type , string $variable_name ) : bool

Parameters

type

One of INPUT_GET, INPUT_POST, INPUT_COOKIE, INPUT_SERVER, or INPUT_ENV.

variable_name

Name of a variable to check.

Return Values

Returns TRUE on success or FALSE on failure.