How can one troubleshoot and resolve the error message "supplied argument is not a valid MySQL result resource" in PHP?

The error message "supplied argument is not a valid MySQL result resource" typically occurs when a MySQL query fails to execute properly. To troubleshoot and resolve this issue, you should check the SQL query syntax, connection to the database, and ensure that the query is returning a valid result resource. 

// Example code snippet to troubleshoot and resolve the "supplied argument is not a valid MySQL result resource" error
$query = "SELECT * FROM table_name";
$result = mysqli_query($connection, $query);

if (!$result) {
    die('Invalid query: ' . mysqli_error($connection));
}

// Process the query result here

Keywords

MySQL PHP error message troubleshooting resolve

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