filter_input
int$type,
string$var_name,
[int$filter = FILTER_DEFAULT],
[array|int$options = 0]
): mixed
Parameters
- type
-
One of INPUT_GET, INPUT_POST, INPUT_COOKIE, INPUT_SERVER, or INPUT_ENV.
- var_name
-
Name of a variable to get.
- filter
-
The ID of the filter to apply. The manual page lists the available filters.
If omitted, FILTER_DEFAULT will be used, which is equivalent to FILTER_UNSAFE_RAW. This will result in no filtering taking place by default.
- options
-
Associative array of options or bitwise disjunction of flags. If filter accepts options, flags can be provided in "flags" field of array.
Return Values
Value of the requested variable on success, false if the filter fails, or null if the var_name variable is not set. If the flag FILTER_NULL_ON_FAILURE is used, it returns false if the variable is not set and null if the filter fails.