What are the potential pitfalls of using the UPDATE and INSERT queries in PHP for database operations?

One potential pitfall of using UPDATE and INSERT queries in PHP for database operations is the risk of SQL injection attacks if user input is not properly sanitized. To prevent this, it is important to use prepared statements with parameterized queries to avoid injecting malicious SQL code. 

// Example of using prepared statements to prevent SQL injection

// Establish database connection
$pdo = new PDO('mysql:host=localhost;dbname=database', 'username', 'password');

// Prepare SQL statement with placeholders
$stmt = $pdo->prepare("INSERT INTO table_name (column1, column2) VALUES (:value1, :value2)");

// Bind parameters
$stmt->bindParam(':value1', $value1);
$stmt->bindParam(':value2', $value2);

// Set parameter values
$value1 = 'example1';
$value2 = 'example2';

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

Keywords

UPDATE query INSERT query database operations SQL injection error handling

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