/** * 从http请求中获得Email格式字符串 * @param string key * @param bool 允许空白 * @return null|string value */ public static function getRequestEmail($p_key, $p_allowBlank = true, $p_default = null) { $_r = $p_default; $_v = static::getRequestString($p_key, $p_allowBlank, $p_default); if (isset($_v) && ($p_allowBlank || W2String::isEmail($_v))) { $_r = $_v; } return $_r; }