[RESOLVED] another image resizing question

[krotkruton]

I couldn't find a lot ofhelp with this since I'm not saving any of the imaages in directories, only in a mysql DB. I'm trying to create (and then save, but I know how to do the saving part) a thumbnail version of a user uploaded image, along with the original. I think my problem is just due to my lack of understanding of the imagecopyresized function, since that is the error I'm getting.

A quick note: I do not have access to all GD functions, which is why I'm trying to use just the imagecreate and imagecopyresized functions that are available to me. My host is pretty worthless so trying to get the full library compiled is not an option right now.

Here's the relevant code:

if ($_FILES) {
			$image_types = Array ("image/bmp",
				                        "image/jpeg",
				                        "image/pjpeg",
				                        "image/gif");
			if (is_uploaded_file ($_FILES['userfile']['tmp_name'])) {
				$userfile  = addslashes (fread 
				                 (fopen ($_FILES['userfile']['tmp_name'], "r"), 
				                 filesize ($_FILES['userfile']['tmp_name'])));
				$image_size = getimagesize($_FILES['userfile']['tmp_name']);
				$image_width = $image_size[0];
				$image_height = $image_size[1];
				$file_name = $_FILES['userfile']['name'];
				$file_size = $_FILES['userfile']['size'];
				$file_type = $_FILES['userfile']['type'];

			$max_thumbx = 90;
			$max_thumby = 90;
			$thumbx = 0;
			$thumby = 0;

			if ($image_width>$image_height) {$thumbx=$max_thumbx;$thumby=$maxy;};
			if ($image_height>$image_width) {$thumbx=$max_thumby;$thumby=$maxx;};  

			$thumb = imagecreate($thumbx, $thumby);
			imagecopyresized($thumb, $_FILES['userfile']['name'],0,0,0,0,$thumbx, $thumby, $image_width, $image_height);

         		$thumbfile  = addslashes (fread 
			                 (fopen ($thumb, "r"), 
			                 filesize ($thumb)));
			$thumb_size = getimagesize($thumb);
			$thumb_width = $thumb_size[0];
			$thumb_height = $thumb_size[1];
	                $thumb_name = $file_name;
				//Might need to fix these two
			$thumb_size = $thumb[2];
			$thumb_type = $thumb[3];	

//...followed by inserting into the DB

I know that I'm not using imagecopyresized properly, and I'm hoping that someone will be able to easily tell me how to fix it. If there isn't some easy solution to this, then a push in the right direction towards what might help would be equally helpful.

If any other information is necessary, please ask. Thanks in advance.

[ClarkF1]

You're try to create an image using imagecopyresized from one that doesn't exist.

The value of $_FILES['userfile']['name'] is just the filename e.g. image.jpg with no slashes or directory structure.

When it's uploaded, it's stored in a tmp folder until you use move_uploaded_file to move it to the desired location.

When you call the imagecopyresized it's looking for a file with the filename set in $_FILES['userfile']['name'] in the current directory rather than the tmp directory.

What you could do is move the file from the tmp directory to the current directory, perform the functions for creating the thumb, which will also be created in the current directory. Add them to the database and then delete them.

Also make sure the file upload field of the form matches the name of the first bit of the $_FILES array reference, i.e. in this case the formfield has to be named "userfile"

[Installer]

The second argument to "imagecopyresized()" needs to be a GD image resource, not an image file.

$src = imagecreatefromjpeg('path/to/source/image.jpg';
imagecopyresized($thumb, $src, 0, 0, 0, 0, $thumbx, $thumby, $image_width, $image_height);

Also, you can't "fopen($thumb)", because it's a GD image resource in memory, not a file.

[krotkruton]

Thanks to both of you. I understand what's going on better now, so I think I can get it working, one way or another.