filter_var
(PHP 5 >= 5.2.0, PECL filter:0.11.0)
filter_var — Filters a variable with a specified filter
Описание
mixed filter_var
( mixed $variable
[, int $filter
[, mixed $options
]] )
Список параметров
- 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.
Возвращаемые значения
Returns the filtered data, or FALSE if the filter fails.
Примеры
Example#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));
?>
Результат выполнения данного примера:
string(15) "[email protected]" bool(false)