Image Gallery

axnoran

Hi,

I've been trying to create a thumbnail gallery page for a friend. The idea is that any picture file within a directory shows up as a thumbnail. The friend does not want to have to manage the pictures--or remember to delete a thumbnail etc...

The idea is as follows:

1)PHP code scan current directory for picture files.
2)for any file that fits the description, pass the name of the file to a page that generates a temp image.
3)next file etc...
4)display all thumbnails.

If I use one image, everything works fine. As soon as I have more than one, it stops working at all.

I want to have all the thumbnails display inline, so that the friend can just drop an image into the folder and it gets displayed. The code for sizing the image and generating the link works great.

Any suggestions would be appreciated.

twopeak

what's the question?
or do you want us to create the code?

anyway, it shouldn't be that hard!
see on http://www.hotscripts.com/PHP to see if it doesn't already exist (if you're lazy)

otherwise, make shure you have the GD library installed and use that to create thumbnails!
with image resize and things like that
I believe there's a chapter in something we call the "PHP manual"!!!
you can get if from php.net I believe!

axnoran

I have read many of the suggestions out on the web for thumbnail generation.

As long as I am passing one file name, the function works fine.
As soon as I loop back through the code, it breaks.

I get the file name.
Put the name into a session var.
then call <img src='thumbnail.php'>,
as long as I just pass one file name. that part works.

$image1="green.jpg"
$HTTP_SESSION_VARS['sourcefile'] = $image1
<img src='thumbnail.php'>

if I try something like this it fails:

$image1="green.jpg"
$HTTP_SESSION_VARS['sourcefile'] = $image1
<img src='thumbnail.php'>
$image2="blue.jpg"
$HTTP_SESSION_VARS['sourcefile'] = $image2
<img src='thumbnail.php'>
$image1="red.jpg"
$HTTP_SESSION_VARS['sourcefile'] = $image3
<img src='thumbnail.php'>

When I try and loop back and send a second file name, the whole thing breaks down. and I get no images.

here's thumbnail.php (rough code):

<?php
session_start();
$sourcefile= $HTTP_SESSION_VARS['sourcefile'])
$picsize=getimagesize("$sourcefile");
$source_x = $picsize[0];
$source_y = $picsize[1];
$x_ratio = ($source_x/100);
if($x_ratio > 1)
{
$x = round($source_x/$x_ratio);
$y = round($source_y/$x_ratio);
}
else
{
$x = $picsize[0];
$y = $picsize[1];
}
$source_id = imageCreateFromJPEG("$sourcefile");
$target_id=imagecreatetruecolor($x, $y);
$sourcefile=imagecopyresampled($target_id,$source_id, 0, 0 , 0 , 0, $x, $y, $source_x, $source_y);
Header("Content-type: image/jpeg");
imagejpeg ($target_id, "", "50");
?>