What potential issues can arise when updating data in a PHP MySQL application?

One potential issue that can arise when updating data in a PHP MySQL application is the lack of proper error handling. If an update query fails for any reason, it's important to catch and handle the error to prevent unexpected behavior or data loss. One way to solve this issue is by using try-catch blocks to catch any exceptions thrown during the update process and handle them appropriately.

try {
    // Perform the update query
    $query = "UPDATE table_name SET column_name = 'new_value' WHERE condition";
    $result = mysqli_query($connection, $query);

    if (!$result) {
        throw new Exception("Update query failed: " . mysqli_error($connection));
    }

    // Handle successful update
    echo "Data updated successfully";
} catch (Exception $e) {
    // Handle the error
    echo "An error occurred: " . $e->getMessage();
}