What are the common pitfalls when using mysqli to insert data into a database?

One common pitfall when using mysqli to insert data into a database is not properly sanitizing user input, which can leave the application vulnerable to SQL injection attacks. To solve this issue, always use prepared statements with parameterized queries to securely insert data into the database. 

// Connect to the database
$mysqli = new mysqli("localhost", "username", "password", "database");

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

// Prepare a statement
$stmt = $mysqli->prepare("INSERT INTO table_name (column1, column2) VALUES (?, ?)");

// Bind parameters
$stmt->bind_param("ss", $value1, $value2);

// Set parameters and execute
$value1 = "value1";
$value2 = "value2";
$stmt->execute();

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

Keywords

mysqli insert data database errors data validation

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