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public $filename;	/** * Creates an image handler. Use: image::image_create(100, 100); * * @param int $size_x * @param int $size_y * @return image handler */function image_create($size_x = null, $size_y = null){	if ($size_x == null && $size_y == null)	{		$format = exif_imagetype("{$this->filename}");		if ($format)		{			switch($format)			{				case 1: $source = imagecreatefromgif($this->filename);				case 2: $source = imagecreatefromjpeg($this->filename);				case 3: $source = imagecreatefrompng($this->filename);			}		}		else		{			echo "D";		}	}	else	{		$source = imagecreatetruecolor($size_x, $size_y);	}				return $source;}$source = $this->image_create(1, $size_y);