What are some common reasons why a PHP voting script may not save ratings as intended?

One common reason why a PHP voting script may not save ratings as intended is due to incorrect database connection or query execution. Make sure that the database connection settings are correct and that the SQL query to insert or update the ratings is properly executed. Additionally, ensure that the form submission method is set to POST and that the input fields are named correctly. 

// Example of fixing database connection issue in a PHP voting script

// Define database connection settings
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

Keywords

MySQL SQL injection session variables error handling form validation

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