At 04:52 PM 8/13/2002 +0200, Sascha Braun wrote:
Okay... I've looked at that library and felt as if I was looking into the 
ark of the Covenant.

I'm really not that good at programing and looking at that script made my 
eyes bleed.

This is a script I've used to save an image and then dynamically resize it 
proportionately until it is within 200x180.  It also renames the file and 
creates a mysql database entry for the file so my image collection can 
later be searched.

//Query Database to get the next sequential image number
$lastnumQry = "SELECT imageID FROM images ORDER BY imageID DESC";
$lastnumRslt = mysql_query($lastnumQry, $conn);
$lastnum = mysql_fetch_array($lastnumRslt);
$newnum = $lastnum['imageID']+1;

//Set image directory root
$image_root = $DOCUMENT_ROOT.'/images/';

//Create a temp image file from uploaded jpeg
$tempimage = imagecreatefromjpeg("$f_image");

//Get dimensions of image
$temp_h = ImageSY($tempimage);
$temp_w = ImageSX($tempimage);

//Checks that the image is not too small (less than 50x50)

if($temp_h < 50 && $temp_w <50)
         echo "ERROR: Image is less then 50x50.";
//set file name
$filename = $newnum.'.jpg';

//save image
if(!ImageJpeg($tempimage, $image_root.$filename))
         echo "ERROR: Image unable to save file.  Try again later.";
//set file name for thumbnail
$smallfilename = $newnum.'_t.jpg';

//Check to see if the image is already within the 200x180 range
if($temp_h < 200 && $temp_w <180)
         //Save thumbnail
         if(!ImageJpeg($tempimage, $image_root.$smallfilename))
                 echo "ERROR: Thumbnail Image unable to upload!";

         This section of the script uses the math that to resize an image 
in proportion
         You must cross multiply the dimensions with their ratios... I use 
1.8 and 2.0
         but I could of as easily used 180 and 200.  The math works, I 
don't know how
         to really explain it, but it works.

         echo "Resize beginning.<BR>";
         if(($temp_h*1.8) > ($temp_w*2))
                 $ratio = $temp_w/$temp_h;
                 $dest_w = 200*$ratio;
                 $dest_h = 200;
         if(($temp_h*1.8) < ($temp_w*2))
                 $ratio = $temp_h/$temp_w;
                 echo "Ratio - $ratio <br>";
                 $dest_w = 180;
                 $dest_h = 180*$ratio;
         //On the off chance that the image is proportionate to 200x180 
already we just set the height and width.
         if(($temp_h*1.8) == ($temp_w*2))
                 $dest_w = 180;
                 $dest_h = 200;

         //Create the canvas.  To use imagecreatetruecolor you need 
php_gd2.dll listed as an extension
         $image_t = imagecreatetruecolor($dest_w, $dest_h);

         //Resize (technically resample) the image to the new canvas
         imagecopyresampled($image_t, $tempimage, 0, 0, 0, 0, $dest_w, 
$dest_h, $temp_w, $temp_h);

         //Save the Thumbnail
         if(!ImageJpeg($image_t, $image_root.$smallfilename))
                 echo "ERROR: Thumbnail Image unable to Upload!";
//Clean up

//Insert File info into MySQL database
$imageUpdate = "insert into images (catID, caption, descr, systemID, 
genreID, game) values ('$f_imageCat', '$f_caption', '$f_descr', 
'$f_system', '$f_genre', '$f_game')";

if(!mysql_query($imageUpdate, $conn))
         echo "ERROR: Unable to Submit information to Database, try Upload 
echo "<BR><BR><font size=3>Image Upload Successful! Image ID is: $newnum";

I am running a windows system, so I know that the JPEG functions do work.
Gif functions will NOT WORK as the compression algorithm is now copyrighted.
If this script (once tweaked for your system needs) does not work and your 
php.ini file is included the proper extension I don't know what to say.


>I believe the jpeg funnktions don't work on a windows system. The Gifs don't
>do either because they aren't implemeted too.
>Please look at this Library. It's very nice but I don't get it working and
>the guy who made it don't know either, why it's not working on my system.
>Must be something about jpeg librarys and so on.
>PS.: Examples at the end of the file.
>-----Ursprüngliche Nachricht-----
>Von: Nicholas Mercier [mailto:[EMAIL PROTECTED]]
>Gesendet: Dienstag, 13. August 2002 10:35
>Betreff: Re: [PHP] image function

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