/**
* Validate URL
*
* @param string URL
* @param bool allow idna/unicode urls
* @return boolean
*/
public static function url($url, $idna = TRUE)
{
if ($idna) {
$url = IDNA_convert::singleton()->encode($url);
}
return $url and (bool) filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_HOST_REQUIRED);
}
/**
* the constructor
*
* @param array $options
* @return boolean
* @since 0.5.2
*/
public function __construct($options = false)
{
$this->slast = $this->_sbase + $this->_lcount * $this->_vcount * $this->_tcount;
// If parameters are given, pass these to the respective method
if (is_array($options)) {
$this->set_parameter($options);
}
// populate mbstring overloading cache if not set
if (self::$_mb_string_overload === null) {
self::$_mb_string_overload = extension_loaded('mbstring') && (ini_get('mbstring.func_overload') & 0x2) === 0x2;
}
}
