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Doctor Feelgood
Arrrrghh!
Joined: 07 Apr 2003
Posts: 20349
Location: New Jersey
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 Posted: Wed, 01 Dec 2004 13:32:22 Post Subject: Script makes thumbnails for images in a folder |
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I think someone posted it on another forum I saw... But, I can't find it now. Basically, it was one file (perhaps .ASP extension) that you could drop into a folder of images on a server, and when you browsed to the folder you saw thumbnails instead of a list of file names.
Anyone know what I mean?
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Little Bruin
Boo Boo
Joined: 07 Apr 2003
Posts: 667
Location: Pic-A-Nic Basket |
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IceNine
*The Freshest*
Joined: 08 Sep 2003
Posts: 1459
Location: Bel Air
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| Posted: Wed, 01 Dec 2004 13:35:21 Post Subject: |
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I've seen this (big surprise). Since you run PHP, I'll see what I can find for you.
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IceNine
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| Posted: Wed, 01 Dec 2004 13:41:28 Post Subject: |
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Do you have the GD Library installed?
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Doctor Feelgood
Arrrrghh!
Joined: 07 Apr 2003
Posts: 20349
Location: New Jersey
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IceNine
*The Freshest*
Joined: 08 Sep 2003
Posts: 1459
Location: Bel Air
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| Posted: Wed, 01 Dec 2004 14:04:38 Post Subject: |
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Do you want it to resize the images everytime? Because you can have it a few ways:
1) Force PHP to resize all images each time. Lots of processing power, less bandwidth.
2) Have the browser render them all at a smaller resolution. (Little processing power, more bandwidth). When an image is clicked, it is already cached, so no load time to see the entire image.
3) Have PHP create a thumbnail folder and view that.
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Doctor Feelgood
Arrrrghh!
Joined: 07 Apr 2003
Posts: 20349
Location: New Jersey
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| Posted: Wed, 01 Dec 2004 14:09:50 Post Subject: |
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Probably #3... I think I found what I used before, but I can't run it right now:
http://wwwai.wu-wien.ac.at/~hahsler/pix2tn/
Very basic, but that is all I cared for on this little project. But, maybe I will install something else... 
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IceNine
*The Freshest*
Joined: 08 Sep 2003
Posts: 1459
Location: Bel Air
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| Posted: Wed, 01 Dec 2004 15:07:36 Post Subject: |
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I found this... Seems like it would do what you want.
| Code: | <?php
$gd2=checkgd();
$pics=directory("pics","jpg,JPG,JPEG,jpeg,png,PNG");
$pics=ditchtn($pics,"tn_");
if ($pics[0]!=""){
foreach ($pics as $p){
createthumb("pics/".$p,"thumbs/tn_".$p,150,150);
}
}
/*
Function checkgd()
checks the version of gd, and returns "yes" when it's higher than 2
*/
function checkgd(){
$gd2="";
ob_start();
phpinfo(8);
$phpinfo=ob_get_contents();
ob_end_clean();
$phpinfo=strip_tags($phpinfo);
$phpinfo=stristr($phpinfo,"gd version");
$phpinfo=stristr($phpinfo,"version");
preg_match('/\d/',$phpinfo,$gd);
if ($gd[0]=='2'){$gd2="yes";}
return $gd2;
}
/*
Function ditchtn($arr,$thumbname)
filters out thumbnails
*/
function ditchtn($arr,$thumbname){
foreach ($arr as $item){
if (!preg_match("/^".$thumbname."/",$item)){$tmparr[]=$item;}
}
return $tmparr;
}
/*
Function createthumb($name,$filename,$new_w,$new_h)
creates a resized image
variables:
$name Original filename
$filename Filename of the resized image
$new_w width of resized image
$new_h height of resized image
*/
function createthumb($name,$filename,$new_w,$new_h){
global $gd2;
$system=explode(".",$name);
if (preg_match("/jpg|jpeg/",$system[1])){$src_img=imagecreatefromjpeg($name);}
if (preg_match("/png/",$system[1])){$src_img=imagecreatefrompng($name);}
$old_x=imageSX($src_img);
$old_y=imageSY($src_img);
if ($old_x > $old_y) {
$thumb_w=$new_w;
$thumb_h=$old_y*($new_h/$old_x);
}
if ($old_x < $old_y) {
$thumb_w=$old_x*($new_w/$old_y);
$thumb_h=$new_h;
}
if ($old_x == $old_y) {
$thumb_w=$new_w;
$thumb_h=$new_h;
}
if ($gd2==""){
$dst_img=ImageCreate($thumb_w,$thumb_h);
imagecopyresized($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);
}else{
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);
imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y);
}
if (preg_match("/png/",$system[1])){
imagepng($dst_img,$filename);
} else {
imagejpeg($dst_img,$filename);
}
imagedestroy($dst_img);
imagedestroy($src_img);
}
/*
Function directory($directory,$filters)
reads the content of $directory, takes the files that apply to $filter
and returns an array of the filenames.
You can specify which files to read, for example
$files = directory(".","jpg,gif");
gets all jpg and gif files in this directory.
$files = directory(".","all");
gets all files.
*/
function directory($dir,$filters){
$handle=opendir($dir);
$files=array();
if ($filters == "all"){while(($file = readdir($handle))!==false){$files[] = $file;}}
if ($filters != "all"){
$filters=explode(",",$filters);
while (($file = readdir($handle))!==false) {
for ($f=0;$f<sizeof($filters);$f++):
$system=explode(".",$file);
if ($system[1] == $filters[$f]){$files[] = $file;}
endfor;
}
}
closedir($handle);
return $files;
}
?>
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Little Bruin
Boo Boo
Joined: 07 Apr 2003
Posts: 667
Location: Pic-A-Nic Basket |
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Doctor Feelgood
Arrrrghh!
Joined: 07 Apr 2003
Posts: 20349
Location: New Jersey
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IceNine
*The Freshest*
Joined: 08 Sep 2003
Posts: 1459
Location: Bel Air
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| Posted: Wed, 01 Dec 2004 16:18:11 Post Subject: |
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Gif... There was a huge problem among GD, PHP and Compuserve. The Graphics Interchange Format patent is owned by Compuserve, therefore the libraries necessary for this are not GNUly available.
I would check to see if your copy of GD has the GIF library installed.
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Doctor Feelgood
Arrrrghh!
Joined: 07 Apr 2003
Posts: 20349
Location: New Jersey
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| Posted: Wed, 01 Dec 2004 16:22:15 Post Subject: |
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I would check, but I am having a different software issue now... My office's firewall is now blocking every site on the web... except for this one!!  How is that possible? 
"Request blocked by WebBlocker" |
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