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In this article, you will learn: What are constants? How to declare the constants? Types of constants

How to print the method name with the associated class name using magic constant __METHOD__ in PHP | PHP programs

How to print the class name using magic constant __CLASS__ in PHP | PHP programs

How to print the function name using magic constant __FUNCTION__ in PHP | PHP programs

How to print the line number using __LINE__ magic constant in PHP | PHP programs

How to check a constant is defined or not in PHP | PHP programs

How to check a constant is defined or not in PHP | PHP programs

How to create a case in-sensitive constant using define() function in PHP | PHP programs

How to create a constant using define() function in PHP | PHP programs

In this article you will learn about constant and literal

In this article you will learn about constants