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filter_id

Description

The filter_id of Filter for PHP returns the filter ID belonging to a named filter.

Syntax

filter_id(
    string $name
): int|false

Parameters

name

Name of a filter to get.

Return

Returns the ID of a filter on success or false if filter doesn't exist.

Examples

1 · name

<?

$name = "int";

$return = filter_id($name);

echo $return;

257

2 · filter_list

<?

$filter_list = filter_list();

foreach($filter_list as $name)
{
    $return = filter_id($name);

    echo "$return: $name\n";
}

257: int
258: boolean
259: float
272: validate_regexp
277: validate_domain
273: validate_url
274: validate_email
275: validate_ip
276: validate_mac
513: string
513: stripped
514: encoded
515: special_chars
522: full_special_chars
516: unsafe_raw
517: email
518: url
519: number_int
520: number_float
523: add_slashes
1024: callback