how do you debug your facebook app?

facebook php developing app is hell cause they limit scripts, what is your tools to debug it? write to file vari开发者_StackOverflow中文版ables? firebug? please share ideas!

Debugging facebook application is almost the same as any web application:
Client Side:

• Debugging the JS library online, JavaScript Test Console
• Firebug (console. method)

Server Side:

• Firebug Net tab and FirePHP (if you feel comfortable using it)
• basic var_dump and echo commands

What I really find hard to grasp is their documentation!

Extra tip:
Try playing around with the FQL methods, creating a test group/page and events..etc to better understand how FB Graph API works. It'll make reading the Documentation easier too!