What best practices should be followed when configuring paths in PHP scripts to avoid errors?

When configuring paths in PHP scripts, it is important to use absolute paths instead of relative paths to avoid errors. Absolute paths provide the full path to the file or directory, ensuring that the script can locate the resources correctly regardless of the current working directory. This practice helps prevent issues such as file not found errors or unexpected behavior due to incorrect path resolution.

// Incorrect relative path usage
include 'config.php';

// Correct absolute path usage
include __DIR__ . '/config.php';