problems with thumbnails

[lapsinja]

Hey. I have 2 problems with thumbnails. Hope you could help to solve at least one of them  

1.I have made a form on my website where the user can upload image and add some extra information. So I made thumbnails for uploaded images that are stored in folder (they're stored in the database as well, but these thumbnails are linked with the folder not database) and when I click on the thumbnail I want it to show the big image and some data from database that was added when the user uploaded the image (like- name and date). Now when I click on a thumbnail it shows me all the data that's in the database- including other images as well. How to link a thumbnail that is made in folder with data from database? (thumbnails and original images have exact the same name).

2. I used this script to create thumbnails, but it is only for .jpg images. What should I add to allow .png , .jpeg and .gif extensions as well?

/** settings **/
$images_dir = 'images/';
$thumbs_dir = 'images_thumbs/';
$thumbs_width = 200;
$images_per_row = 3;






/* function:  generates thumbnail */
function make_thumb($src,$dest,$desired_width) {
	/* read the source image */
	$source_image = imagecreatefromjpeg($src);
	$width = imagesx($source_image);
	$height = imagesy($source_image);
	/* find the "desired height" of this thumbnail, relative to the desired width  */
	$desired_height = floor($height*($desired_width/$width));
	/* create a new, "virtual" image */
	$virtual_image = imagecreatetruecolor($desired_width,$desired_height);
	/* copy source image at a resized size */
	imagecopyresized($virtual_image,$source_image,0,0,0,0,$desired_width,$desired_height,$width,$height);
	/* create the physical thumbnail image to its destination */

}

/* function:  returns files from dir */
function get_files($images_dir,$exts = array('jpg')) {
	$files = array();
	if($handle = opendir($images_dir)) {
		while(false !== ($file = readdir($handle))) {
			$extension = strtolower(get_file_extension($file));
			if($extension && in_array($extension,$exts)) {
				$files[] = $file;
			}
		}
		closedir($handle);
	}
	return $files;
}

/* function:  returns a file's extension */
function get_file_extension($file_name) {
	return substr(strrchr($file_name,'.'),1);
}



/** generate photo gallery **/
$image_files = get_files($images_dir);
if(count($image_files)) {
	$index = 0;
	foreach($image_files as $index=>$file) {
		$index++;
		$thumbnail_image = $thumbs_dir.$file;
		if(!file_exists($thumbnail_image)) {
			$extension = get_file_extension($thumbnail_image);
			if($extension) {
				make_thumb($images_dir.$file,$thumbnail_image,$thumbs_width);
			}
		}
		echo '<a href="',$images_dir.$file,'"><img src="',$thumbnail_image,'" /></a>';
	}
}
else {
	echo '<p>There are no images in this gallery.</p>';
}

Really waiting for some answers. Thanks!!!

[Eddy_J1]

For number 2 I'd look around the line that says:

function get_files($images_dir,$exts = array('jpg'))

Note that $exts is an array Edited June 5, 2013 by Eddy_J1

[lapsinja]

Yes, I tried to add other extensions like :

 function get_files($images_dir,$exts = array('jpg', 'gif' ,'png'))

but that is not working. 

 

what else should I add to this code to allow upload other file types?

Edited June 5, 2013 by lapsinja