How can PHP developers handle errors related to the mysql_fetch_row function when fetching data from a database query result?

When using the mysql_fetch_row function to fetch data from a database query result, PHP developers should handle errors by checking if the function returns a valid result. This can be done by verifying if the result is not false before attempting to access the fetched data. If the result is false, it indicates an error occurred during the fetch operation.

$result = mysql_query("SELECT * FROM table");
if($result){
    while($row = mysql_fetch_row($result)){
        // Process fetched data
    }
} else {
    echo "Error fetching data from database.";
}