Resizing Images - HELP!

[Anon]

I am trying to do a photo gallery, so I needed something to make thumbnails. Because of the amount of thumbnails, I need something more fancy that just showing the images with smaller W&H (that doesn't shrink file size).

I can use the following to resize .gifs, but it doesn't work for .JPG files. Is there any way to accomplish this with JPGs and not just GIFs?

<?
$src_img = ImageCreatefromGif("test_begin.gif");

$end_img = ImageCreate(75, 56);

ImageCopyResized($end_img, $src_img, 0, 0, 0, 0, 75, 56, 640, 480);
ImageGif($end_img, "test_end.gif");
?>

<img src="test_begin.gif"><br><BR>
<img src="test_end.gif">

[Anon]

I refer to the answer given on PHPBuilder's support archive;

Author: Jack (63.75.41.66)
Date: 2000-07-03 12:49:54

Yes, you would just substitute ImageCreateFromGif($file) with ImageCreateFromJpeg($file) and ImageGif($thumbnail, $newfile) with ImageJPEG($thumbnail, $newfile).

You must have version 1.8+ of GD installed (later versions won't generate .gifs however). It will include the support for jpegs and pngs if you have their respective libraries installed (libjpeg and libpng). Check out http://www.boutell.com/gd/ for more info on install requirements.

Jack

Frosty!

[Anon]

Is there any way to write the image to memory and display it from there? I am hesitant to allow my webserver write access to any directories but if I don't allow write access the ImageJPEG(); function cannot complete since it is attempting to write a file.
Is there a safe way to implement this?