filter_var

(no version information, might be only in CVS)

filter_var -- Filters a variable with a specified filter

Beskrivelse

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

Parameterliste

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.

Returneringsværdier

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

Eksempler

Eksempel 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));
?>

Ovenstående eksempel vil udskrive:

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

Se også

filter_var_array()
filter_input()
filter_input_array()
information omkring callback typen