What are the best practices for working with user variables in LOAD DATA INFILE to discard input values in PHP?

When working with user variables in LOAD DATA INFILE in PHP, it is important to sanitize the input values to prevent SQL injection attacks. One way to do this is by using prepared statements and parameterized queries to safely insert user variables into the SQL query. This helps to discard any malicious input values and ensures the security of the application. 

// Assume $userInput contains the user input value
$userInput = $_POST['user_input'];

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

// Prepare the SQL query with a placeholder for the user input
$stmt = $pdo->prepare("LOAD DATA INFILE 'data.txt' INTO TABLE mytable (column1) SET column2 = :userInput");

// Bind the sanitized user input to the placeholder
$stmt->bindParam(':userInput', $userInput, PDO::PARAM_STR);

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

Keywords

LOAD DATA INFILE user variables input values PHP security

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