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  • filter_id()

    (PHP 5 >= 5.2.0, PHP 7)

    返回与某个特定名称的过滤器相关联的id

    说明

    filter_id(string $filtername): int

    参数

    $filtername

    待获取的过滤器名称

    返回值

    如果获取成功则返回过滤器id,如果过滤器不存在则返回FALSE

    参见

    [To get a list of filters and their IDs:]
    <?php
    $filters = filter_list();
    foreach($filters as $filter_name) {
      echo $filter_name .": ".filter_id($filter_name) ."<br>";
    }
    ?>
    Will result in:
    boolean: 258
    float: 259
    validate_regexp: 272
    validate_url: 273
    validate_email: 274
    validate_ip: 275
    string: 513
    stripped: 513
    encoded: 514
    special_chars: 515
    unsafe_raw: 516
    email: 517
    url: 518
    number_int: 519
    number_float: 520
    magic_quotes: 521
    callback: 1024