filter_has_var
(PHP 5 >= 5.2.0)
filter_has_var — Checks if variable of specified type exists
Description
bool filter_has_var
( int
$type
, string $variable_name
)Parameters
-
type -
One of
INPUT_GET,INPUT_POST,INPUT_COOKIE,INPUT_SERVER, orINPUT_ENV. -
variable_name -
Name of a variable to check.
Return Values
Returns TRUE on success or FALSE on failure.