- Misspelling of Array key (case sensitive).
- If the variable comes from another script, check the script is 'include'd or 'require'd at least once;
- Did you really define/set the Array element?
- Did you unset the Array element somewhere before?
What is a programmer's favourite hangout place? Foo Bar
Returns an array of both PHP's internal and user defined functions currently available in the installed system.
Lucky you: PHP has a built-in opcode cache!
Use Debug Checkpoints to measure execution times of your application code blocks with a detailed listing of time consumption, how much went where.