What steps can be taken to troubleshoot and debug the issue of data not being saved in the database in PHP and Smarty?

Issue: Data not being saved in the database in PHP and Smarty can be due to incorrect database connection settings, SQL syntax errors, or missing data binding parameters. To troubleshoot and debug this issue, check the database connection, review the SQL query for errors, and ensure that all necessary data is being properly bound and inserted into the database. PHP Code Snippet: 

// Check database connection
$connection = new mysqli('localhost', 'username', 'password', 'database_name');
if ($connection->connect_error) {
    die("Connection failed: " . $connection->connect_error);
}

// Prepare and bind SQL statement
$stmt = $connection->prepare("INSERT INTO table_name (column1, column2) VALUES (?, ?)");
$stmt->bind_param("ss", $value1, $value2);

// Set values for binding parameters
$value1 = "value1";
$value2 = "value2";

// Execute SQL statement
$stmt->execute();

// Check for errors
if ($stmt->error) {
    echo "Error: " . $stmt->error;
} else {
    echo "Data saved successfully!";
}

// Close statement and connection
$stmt->close();
$connection->close();

Keywords

PHP Smarty database debugging troubleshooting

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