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Definition and usage
The filter_list() function returns an array of all supported filters.
Grammar
filter_list()
Tips and Instructions NOTE: This result does not function the filter number, but the filter name. Use filter_id() function to get filter number
For example
<!--?phpprint_r(filter_list());?-->
输出结果.
Array ( [0] => int [1] => boolean [2] => float [3] => validate_regexp [4] => validate_url [5] => validate_email [6] => validate_ip [7] => string [8] => stripped [9] => encoded [10] => special_chars [11] => unsafe_raw [12] => email [13] => url [14] => number_int [15] => number_float [16] => magic_quotes [17] => callback )