How can developers debug issues related to browser behavior and external URL execution when using a PHP proxy for Facebook content?

Developers can debug issues related to browser behavior and external URL execution when using a PHP proxy for Facebook content by checking the response headers and content returned by the proxy. They can also use tools like developer console to inspect network requests and responses. Additionally, developers can log any errors or unexpected behavior in the PHP proxy script to identify and fix issues. 

// Sample PHP code snippet for debugging PHP proxy for Facebook content

$url = 'https://www.facebook.com/somepage'; // Facebook URL to proxy
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);

// Check response headers
$headers = curl_getinfo($ch);
var_dump($headers);

// Check response content
var_dump($response);

// Log any errors or unexpected behavior
if(curl_errno($ch)) {
    error_log('Curl error: ' . curl_error($ch));
}

curl_close($ch);

Keywords

PHP proxy browser behavior external URL execution debugging

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