PHP: 20 Lessons to Successful Web Development by Nixon Robin

Author:Nixon, Robin
Language: eng
Format: epub
Publisher: McGraw-Hill Education
Published: 2015-01-26T16:00:00+00:00

Remember that when accessing a global variable via the $GLOBALS[] array, you must omit the preceding $ and place the remainder of the variable name inside quotes.

Global Naming Convention

I write a lot of PHP code, and I used to find that for each variable I used, I would still have to keep referring back to see whether it had a global keyword applied at any point in a function (making it global). If no global keyword was used, it would then be local. So, to save having to keep rechecking, I came up with the following simple convention.

Whenever a variable is created that requires global scope, I use all uppercase letters, and when a local variable is created, I use lowercase, or a combination of uppercase and lowercase (sometimes called CamelCase), like this:

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