[PHP] How do I disable show_source and highlight file?

How to I disable the functions show_source and highlight_file? I can't find any documentation anywhere on how to disable it or secure against it. What is there to prevent a user on my server from seeing my password file or database connection scripts? Thanks, Sam

[PHP] PDF Problems

Hi, I am running PHP4.04pl1, pdflib3.03, jpeg6b, tiff3.5.5, apache1.3.17. Some of the pdf functions work, but others don't, such as pdf_new(). Does anybody know what the problem is? I have been all over the documentation, email archives, and support discussions at phpbuilder.com thanks, Sam