PHP Syntax Error in Setting Global Variable

Question

Ok, so my PHP is, to say the least, horrible. I inherited an application and am having to fix errors in it from someone that wrote it over 7 years ago. When I run the page

Answer 1

The global keyword is used inside of functions to declare that they will use a globally defined variable, not to define one. Just remove the word global, and if you need those values in functions, add:

global $a;

...to the start to the function.