What are best practices for organizing and commenting PHP code to improve readability and maintainability?

Organizing and commenting PHP code is essential for improving readability and maintainability. Use meaningful variable and function names, group related code together, and follow a consistent coding style. Additionally, add comments to explain complex logic, functions, or classes to make it easier for others to understand the code. 

// Example of organizing and commenting PHP code
// Define constants for configuration settings
define('DB_HOST', 'localhost');
define('DB_USER', 'root');
define('DB_PASS', 'password');
define('DB_NAME', 'my_database');

// Connect to the database
$connection = mysqli_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);

// Check if the connection was successful
if (!$connection) {
    die("Connection failed: " . mysqli_connect_error());
}

// Select all records from a table
$sql = "SELECT * FROM users";
$result = mysqli_query($connection, $sql);

// Loop through the results and display them
while ($row = mysqli_fetch_assoc($result)) {
    echo "Name: " . $row['name'] . "<br>";
}

// Close the connection
mysqli_close($connection);

Keywords

PHP code organization commenting readability maintainability

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