How can one effectively follow up on leads or suggestions for PHP functions or solutions?
Issue: You have a form on your website that is not properly sanitizing user input, leaving it vulnerable to SQL injection attacks. To solve this issue, you need to use the mysqli_real_escape_string function to escape special characters in the input before inserting it into the database. PHP Code Snippet:
// Connect to the database
$mysqli = new mysqli("localhost", "username", "password", "database");
// Check connection
if ($mysqli->connect_error) {
die("Connection failed: " . $mysqli->connect_error);
}
// Sanitize user input
$username = mysqli_real_escape_string($mysqli, $_POST['username']);
$password = mysqli_real_escape_string($mysqli, $_POST['password']);
// Insert sanitized input into the database
$sql = "INSERT INTO users (username, password) VALUES ('$username', '$password')";
if ($mysqli->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $mysqli->error;
}
// Close connection
$mysqli->close();
Related Questions
- How can PHP developers use reverse proxy configuration to securely include external content in PHP applications?
- What are the potential issues with storing multiple values in a single column in a database using PHP?
- What are the advantages of writing custom PHP code for contact forms instead of using external services?