What are some best practices for debugging mysqli queries in PHP to ensure proper execution and error handling?

Issue: When debugging mysqli queries in PHP, it is important to properly handle errors that may occur during query execution to ensure the query runs smoothly and returns the expected results. To ensure proper execution and error handling of mysqli queries in PHP, you can use the following best practices: 1. Enable error reporting for mysqli queries by setting the error reporting mode to `E_ALL` and displaying errors using `mysqli_report(MYSQLI_REPORT_ERROR)`. 2. Use `try-catch` blocks to catch any exceptions that may occur during query execution and handle them appropriately. 3. Utilize `mysqli_error()` and `mysqli_errno()` functions to retrieve detailed error messages and error codes for debugging purposes.

// Enable error reporting for mysqli queries
error_reporting(E_ALL);
mysqli_report(MYSQLI_REPORT_ERROR);

// Connect to the database
$mysqli = new mysqli("localhost", "username", "password", "database");

try {
    // Perform mysqli query
    $result = $mysqli->query("SELECT * FROM table");

    // Check for errors
    if (!$result) {
        throw new Exception("Error executing query: " . $mysqli->error);
    }

    // Fetch results
    while ($row = $result->fetch_assoc()) {
        // Process results
    }

    // Free result set
    $result->free();

} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}

// Close the connection
$mysqli->close();