/**
* Collects the filter value from request variables, session variables, or cookie variables, in that order.
* Insures that the value is converted to a TRUE, FALSE or NULL value.
* @param bool $read_cookies Flag indicating that the cookie collection should included in the search for a
* filter value.
*/
public function collectValue($read_cookies = true)
{
parent::collectValue($read_cookies);
if ($this->value) {
$this->value = Validation::parseBoolean($this->value);
}
}
/**
* Returns TRUE/FALSE depending on the value of the requested inptu variable.
* @param string $key Input variable name in either GET or POST data.
* @param integer $index (Optional) index of the element to test, if the variable is an array.
* @param array $src (Optional) array to use in place of GET or POST data.
* @return boolean TRUE/FALSE depending on the value of the input variable.
*/
public static function parseBooleanInput($key, $index = null, $src = null)
{
$value = null;
if ($src === null) {
$src = array_merge($_GET, $_POST);
}
if (!isset($src[$key])) {
return null;
}
if ($index !== null) {
$arr = filter_var($src[$key], FILTER_SANITIZE_STRING, FILTER_REQUIRE_ARRAY);
if (is_array($arr) && count($arr) >= $index - 1) {
$value = $arr[$index];
}
} else {
$value = trim(filter_var($src[$key], FILTER_SANITIZE_STRING));
}
return Validation::parseBoolean($value);
}
