Multi file selection + PHP Zip File download from Form

I have a simple webpage where I display a number of pictures as thumbnails, and also when they are clicked on, use Floatbox to expand them. I have added checkboxes to the page within a form and when a user selects 1 or more of the images, then clicks download ... It will download a zip file of the pictures selected. I have all the code written in PHP, but it is not working properly with the way I have it setup ... I get the following errors .... [08-Oct-2013 14:27:05 America/Chicago] PHP Warning: filesize(): stat failed for [login to view URL] in /home/daviddca/public_html/[login to view URL] on line 14 [08-Oct-2013 14:27:06 America/Chicago] PHP Warning: readfile([login to view URL]): failed to open stream: No such file or directory in /home/daviddca/public_html/[login to view URL] on line 25 [08-Oct-2013 14:27:06 America/Chicago] PHP Warning: unlink([login to view URL]): No such file or directory in /home/daviddca/public_html/[login to view URL] on line 26 I simply need this fixed and working. Very likely something simple for someone who knows what they are doing.