About JPG

[Anon]

Is it possible to change (to resize) physically width and height of *.jpg file?
I mean when I receive an image, I want it to be resized to necessary size and to be written under another name. All works under WinNT+Apache+PHP3_or_4

[pnoeric]

I think you can use the GD engine to do this; try these commands:

ImageCreateFromJPEG(...);
ImageCopyResized(...);
ImageJPEG(...);

(full ref for those at php.net/image)

As for your specific config, it should work, but if not try http://php.weblogs.com/easywindows or www.php4win.de to download a pre-configured version, ready to rock...

---

...in fact, at php.net, I just found this sample code which seems to reduce a JPEG to 25% size:

<pre>
$src_img = imagecreatefromjpeg($imagefile);
$new_w = imagesx($src_img)/4;
$new_h = imagesy($src_img)/4;
$dst_img = imagecreate($new_w,$new_h);
imagecopyresized($dst_img,$src_img,0,0,0,0,$new_w,$new_h,imagesx($src_img),imagesy($src_img));
imagejpeg($dst_img, "scratch/$imagefile");
echo "<img src=scratch/$imagefile>\n";
</pre>

good luck,
Eric Mueller
http://www.themepark.com/php/