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PHP Manual

filter_var

(PHP 5 >= 5.2.0, PECL filter:0.11.0)

filter_var — Filters a variable with a specified filter

Leírás

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

Paraméterek

variable

Value to filter.

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.

Visszatérési értékek

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

Példák

Example#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));
?>

A fenti példa a következő kimenetet adja:

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

Lásd még

Filter
PHP Manual