Assignment Solutions Request using PHP's GD Library

Background Information

Several CS courses post solutions online with the student's Quest ID as a watermark. This page describes a PHP script that provides such a feature. The script uses PHP's GD image library. Students will see the solutions as a PNG image file. Sample output (shrunken):

There is another set of scripts (AssignmentSolutionPHPScript) which also adds watermarks. Those scripts use PHP too, but the image processing is done with a bash script and ImageMagick.

Setting Up the Script

blah blah

• Sample Output:
  

What To Do For Each Assignment

blah blah blah

Who can view solutions?

Only these people can view solutions:

1. Students listed in /u/csXXX/.classlist
2. Students listed in /u/csXXX/.exceptions
   You can manually grant access for specific students by putting them in this file. Each line in .exceptions should be this form:
   studentIDno:QuestID
   Please don't add any spaces or tabs at the end. Example line: 20401835:j9smith
3. Staff listed in the $staff array in generateWatermark.php*
   

Staff can add a u variable at the end of the variable to change the watermark text. For example:

https://www.student.cs.uwaterloo.ca/~cs115/SolnsWatermark/generateWatermark.php?assn=a00q1&_u=whatever_