PHP difference between notice and warning

Question

When writing code errors, warnings and notices can occur. I know the idea behind errors. I suppose a warning is there to inform you about something that can cause an error,

Answer 1

I won't re-iterate the specific meanings, which have been thoroughly covered by other answers.

Warnings and notices indicate different "badness" levels for things you might be doing wrong, but I'm with the PEAR/Zend guides on this: you should always code to E_STRICT, which means you shouldn't ever raise either warnings or notices.

If you follow E_STRICT compatibility, the distinction between notices and warnings is kind of redundant if both are considered "Non-fatal errors that you should make sure don't happen" - they're both essentially warnings.