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Chapter 16. PHP > Language Syntax

16.3. Language Syntax

Variable names in PHP are case-sensitive. That means that $A and $a are two distinct variables. However, function names in PHP are not case-sensitive. This applies to both built-in functions and user-defined functions.

PHP ignores whitespace between tokens. You can use spaces, tabs, and newlines to format and indent your code to make it more readable. PHP statements are terminated by semicolons.


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