Posted by Hitek on 01/30/05 10:52

Are you making sure the $_SESSION['user_sn'] folder exists before saving
the image into it?
I'm asking because I originally thought it was a permission problem but php
will tell you 'permission denied' if that was the case.


At 05:05 PM 1/29/2005, NathanielGuy#21 wrote:
>Hello everyone,
>I have been troubleshooting a problem with one of my scripts for a
>while now, its purpose is to allow a user to upload a file, save it to
>the server, resize it into a thumbnail, and save the thumbnail as
>well. In my script all goes well until it comes to saving the images,
>the script throws these errors:
>
>Warning: imagepng(): Unable to open
>'/home/blacknut/public_html/picserv/picserv_mysql/pictures/blacknute/15.png'
>for writing in /home/blacknut/public_html/picserv_mysql/addpic.php on
>line 91
>
>Warning: imagepng(): Unable to open
>'/home/blacknut/public_html/picserv/picserv_mysql/pictures/blacknute/15t.png'
>for writing in /home/blacknut/public_html/picserv_mysql/addpic.php on
>line 95
>Picture "ffq" was added to our database! The following is what we have
>generated and it is what others will see
>
>Here is the important part of the script, if more is needed i can post
>it as well.
>
> if ($mime_type == 'jpeg') {
> $new_image = imagecreatefromjpeg($_FILES['new_image']['tmp_name']);
>//Create an image refrence
> }
> elseif ($mime_type == 'png') {
> $new_image = imagecreatefrompng($_FILES['new_image']['tmp_name']);
>//Create an image refrence
> }
> elseif ($mime_type == 'gif') {
> $new_image = imagecreatefromgif($_FILES['new_image']['tmp_name']);
>//Create an image refrence
> }
>
> //Image Sizes
> list($new_image_width, $new_image_height) =
>getimagesize($_FILES['new_image']['tmp_name']);//Get img size
> if ($new_image_width > $new_image_height) {//Get thumb size
> $percent_image_size = (200 / $new_image_width);
> }
> elseif ($new_image_width < $new_image_height) {
> $percent_image_size = (200 / $new_image_height);
> }
> else {
> $percent_image_size = (200 / $new_image_height);
> }
> $new_thumb_width = ($percent_image_size * $new_image_width);
> $new_thumb_height = ($percent_image_size * $new_image_height);
>
> $new_thumb_file = imagecreatetruecolor($new_image_width,
> $new_image_height);
> imagepng($new_image,
>'/home/blacknut/public_html/picserv/picserv_mysql/pictures/' .
>strtolower($_SESSION['user_sn']) . '/' . $new_pic_filename . '.png');
>//Copy pic to user dir as pic_id.png
>
> $new_thumb_image = imagecreatetruecolor($new_thumb_width,
>$new_thumb_height); // Create Thumb file
> imagecopyresampled($new_thumb_image, $new_image, 0, 0, 0, 0,
>$new_thumb_width, $new_thumb_height, $new_image_width,
>$new_image_height); //Copy resized to new thumb file
> imagepng($new_thumb_image,
>'/home/blacknut/public_html/picserv/picserv_mysql/pictures/' .
>strtolower($_SESSION['user_sn']) . '/' . $new_pic_filename . 't.png');
>//Save image thumb
>
>I am very new to file/image manipulation in php so if you see any
>errors, or unnecessary code please tell me. I'm not quit sure how
>everything works, although I do have a theoretical picture of how it
>does. Any comments will be appreciated.
>
>--nathan
>
>--
>http://www.blacknute.com/
>
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