Description:
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class jpegImage extends Image { 
	public function __construct($filename){ $this->image = imagecreatefromjpeg($filename); }
}

After storing the image in $this->image it cannot be used in other GD functions outside of the construct, it doesn't get recognized as a resource

Reproduce code:
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class Image { 
	private $image = null;
	public function __construct($filename){ $this->image = imagecreate(100,100); }

	public function __destruct(){ imagedestroy($this->image); }

}

Expected result:
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I'd expect the GD Image that can be used throught my class until it is __destruct'd

Actual result:
--------------
supplied argument is not a valid Image resource