filter_var

(no version information, might be only in CVS)

filter_var -- Filters a variable with a specified filter

Beschreibung

mixed filter_var ( mixed variable [, int filter [, mixed options]] )

Parameter Liste

variable

Value to filter, arrays are filtered recursively.

filter

ID of a filter to use. Defaults to FILTER_SANITIZE_STRING.

options

Associative array of options or bitwise disjunction of flags. If filter accepts options, flags can be provided in "flags" field of array. For the "callback" filter, callback type should be passed.

Rückgabewerte

Returns the filtered data, or FALSE if the filter fails.

Beispiele

Beispiel 1. A filter_var() example

<?php
var_dump
(filter_var('bob@example.com', FILTER_VALIDATE_EMAIL));
var_dump(filter_var('example.com', FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_REQUIRED));
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

string(15) "bob@example.com"
bool(false)

Siehe auch

filter_var_array()
filter_input()
filter_input_array()
Informationen über den Callback-Typ