What is the purpose of the second PHP script provided in the forum thread?

The second PHP script provided in the forum thread is meant to address the issue of SQL injection vulnerability in the first script. The purpose of the second script is to sanitize user input before executing the SQL query to prevent malicious code injection. 

// Second PHP script to sanitize user input before executing SQL query

// Retrieve user input from form submission
$username = $_POST['username'];
$password = $_POST['password'];

// Sanitize user input to prevent SQL injection
$username = mysqli_real_escape_string($conn, $username);
$password = mysqli_real_escape_string($conn, $password);

// Execute SQL query with sanitized input
$query = "SELECT * FROM users WHERE username='$username' AND password='$password'";
$result = mysqli_query($conn, $query);

// Rest of the code to handle query results

Keywords

PHP script forum thread purpose second script functionality

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