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, or INPUT_ENV.
- variable_name
-
Name of a variable to check.
Return Values
Returns TRUE on success or FALSE on failure.