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PHP-函数 Filter


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

PHP-函数
PHP-函数 Filter