How can a PHP beginner navigate through complex PHP scripts written by others?

Navigating through complex PHP scripts written by others can be challenging for beginners. One way to approach this is by breaking down the code into smaller sections and understanding the purpose of each section. It can also be helpful to use comments and documentation to explain the functionality of different parts of the code. Additionally, utilizing debugging tools and online resources can aid in understanding and troubleshooting the script.

// Example of breaking down a complex PHP script into smaller sections with comments

// Section 1: Include necessary files
require_once 'config.php';
require_once 'functions.php';

// Section 2: Get data from database
$data = fetchDataFromDatabase();

// Section 3: Process the data
foreach ($data as $row) {
    processRowData($row);
}

// Section 4: Display the results
displayResults();