Is it possible to use Simple HTML DOM with a proxy server?

Yes, it is possible to use Simple HTML DOM, which is a PHP-based web scraping library, with a proxy server. However, Simple HTML DOM itself does not have built-in proxy support. To utilize a proxy, you will need to fetch the web content using a method that supports proxies, such as cURL, and then load that content into Simple HTML DOM for parsing.

Here's an example of how you might use cURL with a proxy in PHP to fetch content and then parse it with Simple HTML DOM:

<?php
include 'simple_html_dom.php';

// Specify the proxy server details
$proxy = 'your.proxy.server:port';
$proxyAuth = 'user:password'; // username:password for proxy authentication if required

// The URL you want to scrape
$url = 'http://example.com';

// Initialize cURL
$ch = curl_init($url);

// Set cURL proxy options
curl_setopt($ch, CURLOPT_PROXY, $proxy);
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyAuth);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);

// Execute the cURL request
$response = curl_exec($ch);

// Check for cURL errors
if(curl_errno($ch)) {
    die('Curl error: ' . curl_error($ch));
}

// Close the cURL handler
curl_close($ch);

// Load the HTML content into Simple HTML DOM
$html = str_get_html($response);

// Now you can parse the DOM with Simple HTML DOM functions
// For example, find all anchor tags
foreach($html->find('a') as $element) {
    echo $element->href . '<br>';
}

// Clear the DOM object to free up memory
$html->clear();
unset($html);

In this example:

1. We set up cURL with the appropriate proxy settings.
2. We fetch the web content from the specified URL using cURL.
3. We check for any cURL errors and handle them appropriately.
4. We load the fetched content into Simple HTML DOM.
5. We use Simple HTML DOM's functions to parse and manipulate the DOM.
6. Finally, we clear and unset the Simple HTML DOM object to free up memory.

Make sure to replace 'your.proxy.server:port', 'user', 'password', and 'http://example.com' with your actual proxy server details and the URL you wish to scrape.

Keep in mind that using a proxy can be subject to legal and ethical considerations. Always ensure that you are compliant with the terms of service of the website you are scraping, and respect any rate limits or restrictions they may have in place.