Fatal Errors in project.module

I am getting a lot of Fatal error: Only variables can be passed by reference errors in project.module, which (as far as I've read) has to do with the new version of PHP.

So far I've picked up these errors in the following lines:

• 83
• 169
• 314

Thus far I've just added "$foo" & "$bar" to the offending lines, but now when submitting a project I am back to line 169 and have no idea what to do.