In the context of PHP and PDO usage, what are the potential pitfalls of losing oversight in a lengthy script and how can they be mitigated?

Losing oversight in a lengthy PHP script can lead to difficulties in debugging, maintaining, and understanding the code. To mitigate this, it's essential to break down the script into smaller, manageable functions or classes, use meaningful variable names, and add comments to explain complex logic. 

// Example of breaking down a lengthy script into smaller functions

// Function to connect to the database
function connectToDatabase() {
    $pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");
    return $pdo;
}

// Function to fetch data from the database
function fetchDataFromDatabase($pdo) {
    $stmt = $pdo->query("SELECT * FROM mytable");
    return $stmt->fetchAll(PDO::FETCH_ASSOC);
}

// Main script
$pdo = connectToDatabase();
$data = fetchDataFromDatabase($pdo);

// Process the fetched data
foreach ($data as $row) {
    // Do something with each row of data
}

Keywords

PHP PDO oversight lengthy script mitigation

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