How do you define a constant in PHP

In PHP, you can define a constant using the define() function. A constant is a value that cannot be changed during the execution of the script. Constants are useful for defining values that remain the same throughout the life of the script.

Here’s an example of how to define a constant in PHP:

<?php define('SITE_NAME', 'My Website'); echo SITE_NAME; // Outputs: My Website ?>

PHP constant define function PHP constants code examples

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