How can PHP developers troubleshoot and resolve warning messages related to MySQL result resources?

When PHP developers encounter warning messages related to MySQL result resources, it is typically due to not properly freeing the memory associated with the result set after fetching the data. To resolve this issue, developers should free the result set using the mysqli_free_result() function after retrieving the data.

// Perform MySQL query
$result = mysqli_query($conn, "SELECT * FROM users");

// Fetch data from result set
while ($row = mysqli_fetch_assoc($result)) {
    // Process data
}

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