PHP Filter Functions

Function

Description

filter_has_var

Checks if variable of specified type exists

filter_id

Returns the filter ID belonging to a named filter

filter_input_array

Gets external variables and optionally filters them

filter_input

Gets a specific external variable by name and optionally filters it

filter_list

Returns a list of all supported filters

filter_var_array

Gets multiple variables and optionally filters them

filter_var

Filters a variable with a specified filter

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