What are common issues when inserting data into a database using PHP?

One common issue when inserting data into a database using PHP is not properly sanitizing user input, which can lead to SQL injection attacks. To prevent this, always use prepared statements with parameterized queries to securely insert data into the database. 

// Create a database connection
$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 statement
$stmt = $conn->prepare("INSERT INTO table_name (column1, column2) VALUES (?, ?)");
$stmt->bind_param("ss", $value1, $value2);

// Set parameters and execute
$value1 = "Value1";
$value2 = "Value2";
$stmt->execute();

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

Keywords

SQL injection PDO prepared statements data validation error handling

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