How can the issue of not getting the desired output in the MySQL query be resolved?

To resolve the issue of not getting the desired output in a MySQL query, you can check for errors in the query syntax, ensure that the database connection is established correctly, and verify that the query is fetching the data as expected. You can also use functions like mysqli_error() to debug and identify any issues with the query execution. 

// Establish connection to MySQL database
$connection = mysqli_connect("localhost", "username", "password", "database");

// Check connection
if (!$connection) {
    die("Connection failed: " . mysqli_connect_error());
}

// Write and execute MySQL query
$query = "SELECT * FROM table_name";
$result = mysqli_query($connection, $query);

// Check if query was successful
if ($result) {
    // Fetch and display data
    while ($row = mysqli_fetch_assoc($result)) {
        echo $row['column_name'] . "<br>";
    }
} else {
    // Display error message
    echo "Error: " . mysqli_error($connection);
}

// Close connection
mysqli_close($connection);

Keywords

MySQL query PHP troubleshooting debugging error handling

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