Php/docs/function.filter-has-var
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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 $input_type
, string $var_name
) : bool
Parameters
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.
