code: public static function postUnsafeRaw($strKey)
  	{
  		$strCacheKey = 'postUnsafeRaw';
  
  		if (!isset(static::$arrCache[$strCacheKey][$strKey]))
  		{
  			$varValue = static::findPost($strKey);
  
  			if ($varValue === null)
  			{
  				return $varValue;
  			}
  
  			static::$arrCache[$strCacheKey][$strKey] = $varValue;
  		}
  
  		return static::$arrCache[$strCacheKey][$strKey];
  	}
docs: Return a raw, unsafe and unfiltered $_POST variable
  
  @param string $strKey The variable name
  
  @return mixed The raw variable value