What potential issue or pitfall is the user experiencing with their PHP code when attempting to insert data into a database?

The potential issue the user is experiencing with their PHP code when attempting to insert data into a database is that they are not properly sanitizing the input data, leaving their code vulnerable to SQL injection attacks. To solve this issue, the user should use prepared statements with parameterized queries to securely insert data into the database. 

// Connect to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

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

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

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

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

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

Keywords

SQL injection database insertion prepared statements mysqli data validation

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