Why is it recommended to use mysqli_real_escape_string() or Prepared Statements when inserting values into SQL queries in PHP?

It is recommended to use mysqli_real_escape_string() or Prepared Statements when inserting values into SQL queries in PHP to prevent SQL injection attacks. These functions help sanitize user input and escape special characters that could potentially be used to manipulate the query. By using these methods, you can ensure the security and integrity of your database. 

// Using mysqli_real_escape_string()
$conn = mysqli_connect("localhost", "username", "password", "database");
$value = mysqli_real_escape_string($conn, $_POST['value']);
$query = "INSERT INTO table (column) VALUES ('$value')";
mysqli_query($conn, $query);

// Using Prepared Statements
$conn = new mysqli("localhost", "username", "password", "database");
$stmt = $conn->prepare("INSERT INTO table (column) VALUES (?)");
$stmt->bind_param("s", $_POST['value']);
$stmt->execute();
$stmt->close();
$conn->close();

Keywords

mysqli_real_escape_string Prepared Statements SQL queries PHP values

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