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