<?php
function fetchUrlContent($url) {
    // Initialize cURL session
    $ch = curl_init();
 
    // Set cURL options
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  // Return the content as a string
    curl_setopt($ch, CURLOPT_TIMEOUT, 30);  // Set a timeout (in seconds)
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // Follow redirects
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // Disable SSL verification (optional)
 
    // Resolve DNS dynamically by adding Google's DNS (8.8.8.8)
    // We'll allow cURL to resolve the URL to its IP using Google's DNS server.
    $domain = parse_url($url, PHP_URL_HOST);
    curl_setopt($ch, CURLOPT_RESOLVE, ["$domain:80:8.8.8.8"]);
 
    // Execute cURL and get the response
    $response = curl_exec($ch);
 
    // Check for errors
    if(curl_errno($ch)) {
        echo 'Error: ' . curl_error($ch);
    }
 
    // Close the cURL session
    curl_close($ch);
 
    return $response;
}
 
function handleURL($url) {
    if (filter_var($url, FILTER_VALIDATE_URL)) {
        // If the URL is valid, fetch its content
        $content = fetchUrlContent($url);
 
        if ($content) {
            return $content;
        } else {
            return "Failed to retrieve content from $url.";
        }
    } else {
        return "Invalid URL: $url.";
    }
}
 
// Example Usage
$urls = [
    'https://w...content-available-to-author-only...s.com/sites/robertadams/2017/03/02/top-income-earning-blogs/',
    'https://b...content-available-to-author-only...a.com',
    'https://w...content-available-to-author-only...e.com'
];
 
foreach ($urls as $url) {
    $result = handleURL($url);
    echo "Result for $url:\n";
    echo $result . "\n\n";
}
 
 
?>

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