Storing an Image that I create

ccgorman

I have a bit of code that uploads an image to the server. I would like to take this image and create a thumb, normal, large image from it. This is some sample code I have, but I am stuck on the saving part of the image. How do I save an image that I create to a file?

Thanks

<?php
header('Content-type: image/jpeg');
$filename="downloads/Image/large/21-47-110-1.jpg";
$img_temp = imagecreatefromjpeg($filename);
$img_thumb=imagecreatetruecolor(132,99);
imagecopyresampled($img_thumb,$img_temp,0,0,0,0,132,99,imagesx($img_temp),imagesy($img_temp));
imagejpeg($img_thumb, "", 60);

//this is the bit I am not sure about.
$handle = fopen("downloads/Image/large/test.jpg", "a");
fwrite($handle, $img_thumb);
fclose($handle);

imagedestroy($img_thumb);

drew010

[man]imagejpeg[/man] has an optional second argument that specifies the filename you would like the save the image to.

hwttdz

Or more generally any of the imagetype functions, so imagejpeg as mentioned and since you're using jpg files already it might not be a bad idea, but some of the others are imagepng and imagewbmp (bitmap).

ccgorman

Thanks a lot!!!

mr_b

I'm a total php newbie. I know other languages so I'm giving it my best. I'm basically uploading a users image and then watermarking it and saving it. I could upload a file in one page and i could watermark another in another seperate page. But I couldn't do oth on 1 page. Based on the above, I gathered I need to createfromjpeg form the uploaded file on the server, not the one in the form. So I got it working. Is this right or should I say the best way to do this?

move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile);			
$photoImage = ImageCreateFromJPEG($uploadfile);
ImageAlphaBlending($photoImage, true);
$logoImage = ImageCreateFromPNG('images/watermark.png');
$logoW = ImageSX($logoImage);
$logoH = ImageSY($logoImage);
ImageCopy($photoImage, $logoImage, 0, 0, 0, 0, $logoW, $logoH);
imagejpeg($photoImage, $uploadfile);

Thoughts?

hwttdz

The other possibly easier way to do it is to store the files in unadulterated form and then when you diplay them use a php file as the image source i.e. <img src="watermark.php?name=imgname"> and make that take care of the watermark action and then you'll still have a good copy of the file, because I can't see that you'd want to mess a pretty picture up.

Weedpacket

The disadvantage to that of course is that all the watermarking etc. has to be carried out every time the image is requested, instead of just once, at upload. It would make more sense to store two versions: one with the watermark and (assuming for some reason you do want to keep it around - surely it's not your only copy) one without.

mr_b

Thanks for the replies. Good stuff in these forums. I'll be sotring 2 versions of the file to eliminate both issues. This causes a 3rd which is storage space. I'll solve that by clearing out the clean versions and backing them up locally. Thanks again.

mr_b

Thanks all for your help. I finished a rough version of the site. www.coolpl8z.com The submit page was what I need help on. I have a seperate admin to make original copies, watermark and create thumbnails with a few clicks. More to come. My next task is a voteing system without a login requirement which I think I'll do with cookies and some random ids.