How can one troubleshoot and fix issues with PHP code not saving form data to a database?

Issue: If PHP code is not saving form data to a database, the problem could be due to incorrect database connection settings, SQL query errors, or missing form input names in the PHP code. To troubleshoot and fix this issue, check the database connection, validate the SQL query, and ensure that the form input names match the PHP code. 

// Assuming the form data is being submitted via POST method

// 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);
}

// Retrieve form data
$data1 = $_POST['input_name1'];
$data2 = $_POST['input_name2'];

// SQL query to insert form data into database
$sql = "INSERT INTO table_name (column1, column2) VALUES ('$data1', '$data2')";

// Execute SQL query
if ($conn->query($sql) === TRUE) {
    echo "Record inserted successfully";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

// Close database connection
$conn->close();

Keywords

PHP form data database troubleshooting fixing

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