So I made the website and the code but it can’t seem to work

    <?php

if (isset($_GET['src'])) {
    $url = $_GET['src'];
    
    if (filter_var($url, FILTER_VALIDATE_URL) && strpos($url, 'cdn.discordapp.com') !== false) {
        
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        $result = curl_exec($ch);
        curl_close($ch);

        if ($result !== false) {
            echo "<pre>" . htmlspecialchars($result) . "</pre>";
        } else {
            echo "Error fetching the content.";
        }
    } else {
        echo "Invalid URL     provided.";
    }
    } else {
        echo "No URL specified.";
    }
    ?>

I tried to ask my friends but they didn’t know how to solve the issue neither