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Posted by pmz on 08/06/07 12:45
On 6 Sie, 14:35, pmz <przemek.zaw...@gmail.com> wrote:
> On 6 Sie, 14:16, Jerry Stuckle <jstuck...@attglobal.net> wrote:
>
>
>
> > pmz wrote:
> > > On 6 Sie, 13:35, Jerry Stuckle <jstuck...@attglobal.net> wrote:
> > >> pmz wrote:
> > >>> Dear Group,
> > >>> I'm not sure what is going one with my software, but something really
> > >>> strange.
> > >>> I'm storing in BLOB in MySQL data of an image, which I display like:
> > >>> header("Content-Type: image/png");
> > >>> echo base64_decode($blobColumnData);
> > >>> Firefox/IE says, that the image cannot be displayed because it
> > >>> contains errors. I've tried setting header to image/jpeg, etc, with no
> > >>> results.
> > >>> At the end, I've just tried fwrite() the 'base64_decode($blobData)'
> > >>> into a file and display it in Gimp - with no problems, with no
> > >>> difference jpeg or png.
> > >>> What's wrong? Where shall I look for problems?
> > >>> Some system details:
> > >>> PHP Details:
> > >>> PHP 5.2.3 with Suhosin-Patch 0.9.6.2 (cli) (built: Jul 27 2007
> > >>> 01:29:42)
> > >>> Copyright (c) 1997-2007 The PHP Group
> > >>> Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies
> > >>> GD Details:
> > >>> gd-2.0.33_4,1
> > >>> php5-gd-5.2.0
> > >>> png-1.2.14
> > >>> jpeg-6b_4
> > >>> OS Details:
> > >>> FreeBSD drum.phpdev 6.2-RELEASE FreeBSD 6.2-RELEASE
> > >>> Thank you for help!
> > >>> All the best,
> > >>> Przemek M. Zawada
> > >> Why are you calling base64_decode()? Did you base64_encode() the image
> > >> before storing it in the database? If so, why?
>
> > >> --
> > >> ==================
> > >> Remove the "x" from my email address
> > >> Jerry Stuckle
> > >> JDS Computer Training Corp.
> > >> jstuck...@attglobal.net
> > >> ==================
>
> > > Dear Jerry,
>
> > > I did call the base64_encode before storing the image in the database,
> > > because as I mentioned before, when I 'save' the image with fwrite(),
> > > the image opened with Gimp is perfectly working.
>
> > > Sample:
>
> > > $Data = base64_decode(image_from_db_encoded);
>
> > > fwrite($fh, $Data);
>
> > > And this works fine:
> > > # gimp myimage.jpg &
>
> > > If I do so:
>
> > > header("Content-Type: image/jpeg");
> > > print $Data;
>
> > > It does not work.
>
> > > For example, I've tested with sample image creation with gd, such as:
> > > $I = imagecreate(256, 256);
> > > $Bg = imagecolorallocate($I, 255, 0, 0);
> > > imagejpeg($I);
>
> > > It also does not work, why?
> > > The GD is installed, even updated, phpinfo() sayz that everything is
> > > okay, what is happening?
>
> > > All the best,
> > > Przemek
>
> > Well, first of all, there's no need to base64_encode/decode the data; it
> > works fine in a blog column without the extra overhead.
>
> > Do you have error reporting enabled and are you displaying errors? If
> > not, please do so. If so, are you seeing any errors?
>
> > Also, what's your actual failing code? Excerpts and pseudo-code don't
> > often solve problems.
>
> > --
> > ==================
> > Remove the "x" from my email address
> > Jerry Stuckle
> > JDS Computer Training Corp.
> > jstuck...@attglobal.net
> > ==================
>
> Dear Jerry,
>
> As you suggested, I've changed error_reporting to E_ALL, and when I
> have removed all 'my coding', such as libs, etc. The GD graphich
> appeared on my screen (as in php.net example).
> I have included 'my coding' and I have received some notices, but no
> warnings or errors, ie.:
> Notice: Undefined property: DOMText::$tagName in /usr/home/pmz/
> Wenagroup/order.wena.local/Libs/SM_MySQL_XML.php on line 15
>
> (lots of them - like ~20 - because it reads the MySQL config file)
> How it is happening, that it is blocking my GD graphics? The problem
> on line 15 is the following:
> foreach($documentElement->childNodes as $Node1)
> switch($Node1->tagName) // line 15
> {
> // ...
> }
>
> How may I solve it? I've tryed "if's" with != null, or even empty() or
> isset(), but it does not changed anything..
>
> Thank you for your attention to my problems.
>
> All the best,
> Przemek M. Zawada
Okay, I've solved that the 'tagName' is the property of DOMNode but
not DOMText, so is there any way to determine whether it is a DOMNode
or DOMText - ie. C# GetType() <> typeof(string) ?
All the best,
Przemek M. Zawada
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