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filter_var

filter_var

(no version information, might be only in CVS)

filter_var -- Filters a variable with a specified filter

Popis

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

Seznam parametrů

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.

Návratové hodnoty

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

Příklady

Příklad 1. A filter_var() example

<?php
var_dump
(filter_var('[email protected]', FILTER_VALIDATE_EMAIL));
var_dump(filter_var('example.com', FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_REQUIRED));
?>

Výše uvedený příklad vypíše:

string(15) "[email protected]"
bool(false)