How can PHP functions be utilized to enhance code readability and maintainability in database query processing?

Using PHP functions can enhance code readability and maintainability in database query processing by encapsulating repetitive query logic into reusable functions. This allows for easier debugging, modification, and scaling of the codebase. Additionally, it promotes the concept of DRY (Don't Repeat Yourself) programming, reducing the chances of errors and inconsistencies in the code. 

// Function to execute a database query and return the result
function executeQuery($query) {
    // Connect to the database
    $conn = mysqli_connect("localhost", "username", "password", "database");

    // Execute the query
    $result = mysqli_query($conn, $query);

    // Close the database connection
    mysqli_close($conn);

    return $result;
}

// Example usage
$query = "SELECT * FROM users WHERE id = 1";
$result = executeQuery($query);

// Process the query result
while ($row = mysqli_fetch_assoc($result)) {
    // Do something with the data
}

Keywords

PHP functions code readability maintainability database query processing error handling

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