filter_has_var
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
filter_has_var — Checks if variable of specified type exists
Description
$input_type
, string $var_name
): boolParameters
-
input_type
-
One of
INPUT_GET
,INPUT_POST
,INPUT_COOKIE
,INPUT_SERVER
, orINPUT_ENV
. -
var_name
-
Name of a variable to check.
Return Values
Returns true
on success or false
on failure.