How did another user suggest modifying the PHP script to address the issue?

Issue: The PHP script is not properly escaping user input, leaving it vulnerable to SQL injection attacks. To address this issue, we need to modify the script to use prepared statements with parameterized queries. 

// Connect to the database
$pdo = new PDO('mysql:host=localhost;dbname=database', 'username', 'password');

// Prepare a SQL statement with a parameterized query
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');

// Bind the parameter
$stmt->bindParam(':username', $_POST['username']);

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

// Fetch the results
$results = $stmt->fetchAll();

// Loop through the results
foreach ($results as $row) {
    // Output the data
    echo $row['username'] . '<br>';
}

Keywords

PHP script modification user suggestion error resolution code optimization

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