how to use Curl Fatch data in other website

<?php

function curl_download($Url){
 
    if (!function_exists('curl_init')){
        die('cURL is not installed. Install and try again.');
    }
 
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $Url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $output = curl_exec($ch);
    curl_close($ch);
    $start = strpos($output, '<h2 id="logo">cfghvbbv</h2>');
$end = strpos($output, '<p>', $start);
$length = $end-$start;
$output = substr($output, $start, $length);
   
   
   
   
 
    return $output;
}

print curl_download('http://www.gutenberg.org/browse/scores/top');

?>