How can PHP developers effectively debug and troubleshoot issues related to MySQL database queries, such as errors with fetch_object() function calls?

When debugging MySQL database query issues related to fetch_object() function calls, developers can enable error reporting and display to see any errors thrown by the database. Additionally, developers can check the result of the query execution to ensure it was successful before calling fetch_object(). Lastly, developers can use var_dump() or print_r() to inspect the object returned by fetch_object() for any unexpected values or structures. 

// Enable error reporting and display
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
ini_set('display_errors', 1);

// Check query execution result
$result = $mysqli->query("SELECT * FROM table_name");
if ($result) {
    // Fetch object and inspect
    $row = $result->fetch_object();
    var_dump($row);
} else {
    echo "Error executing query: " . $mysqli->error;
}

Keywords

PHP MySQL fetch_object() debugging troubleshooting

Related Questions