Is it advisable to rely on user-submitted links instead of using a search robot in PHP for a free ringtone website?

It is not advisable to rely solely on user-submitted links for a free ringtone website as it can pose security risks such as malicious links or content. It is recommended to use a combination of user-submitted links and a search robot to ensure the safety and accuracy of the content on the website.

// Example of using a search robot along with user-submitted links
if(isset($_GET['search_query'])){
    $search_query = $_GET['search_query'];
    // Use the search query to fetch relevant content from a trusted source
    // Display the search results on the website
} elseif(isset($_GET['user_link'])){
    $user_link = $_GET['user_link'];
    // Validate and sanitize the user-submitted link before using it
    // Display the content from the user-submitted link on the website
} else {
    // Display a default page or prompt for user input
}