What common error message is encountered when using MySQL result resources in PHP?

When using MySQL result resources in PHP, a common error message encountered is "Commands out of sync; you can't run this command now". This error occurs when attempting to execute another query before fetching all rows from the previous result set. To solve this issue, you need to free the result set before executing another query.

// Fetch all rows from the result set
while ($row = mysqli_fetch_assoc($result)) {
    // Process the rows
}

// Free the result set
mysqli_free_result($result);

// Now you can execute another query
$newResult = mysqli_query($connection, "SELECT * FROM table2");