How can PHP developers effectively troubleshoot issues related to implementing database query results into an array?

When implementing database query results into an array in PHP, developers may encounter issues such as incorrect data mapping or missing values. To troubleshoot these issues effectively, developers should carefully review the query results, ensure that the array structure matches the expected format, and use debugging tools like print_r or var_dump to inspect the array contents.

// Sample code snippet for implementing database query results into an array
$query = "SELECT * FROM users";
$result = mysqli_query($connection, $query);

if ($result) {
    $users = array();
    while ($row = mysqli_fetch_assoc($result)) {
        $users[] = $row;
    }

    // Print the array for debugging
    var_dump($users);
} else {
    echo "Error: " . mysqli_error($connection);
}