What are the potential drawbacks of including specific parts of PHP code in different files?

Including specific parts of PHP code in different files can lead to issues such as code duplication, difficulties in maintaining and updating the code, and potential conflicts between different parts of the code. To solve this problem, you can use PHP's include and require functions to include external PHP files that contain the specific code you need in a modular and organized way. 

// main.php
require 'functions.php';
require 'constants.php';

// functions.php
function calculateArea($radius) {
    return PI * $radius * $radius;
}

// constants.php
define('PI', 3.14159);

Keywords

PHP code separate files code organization include statement variable scope

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