What considerations should be made when including files from different directories in PHP scripts?

When including files from different directories in PHP scripts, it's important to consider the file path relative to the current script location. To include files from different directories, you can use the `__DIR__` or `dirname(__FILE__)` magic constants to get the current directory path and then concatenate the relative path to the file you want to include. 

<?php
// Include a file from a different directory
include __DIR__ . '/../path/to/file.php';
?>

Keywords

include require include_path file paths directory structure

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