Get SSL/TLS certificate details and full headers from a secure website.

getRawSecureWebsite.php

<?php

$details = getRawSecureWebsite('www.google.com');

echo '<textarea>' . $details['raw'] . '</details>';


function getRawSecureWebsite( $domain ) {
	$raw = '';
	$headers = '';
	$error = '';
	if($stderr = tmpfile()) {
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL,"https://" . $domain);
		curl_setopt($ch, CURLOPT_STDERR, $stderr);
		curl_setopt($ch, CURLOPT_CERTINFO, 1);
		curl_setopt($ch, CURLOPT_VERBOSE, 1);
		curl_setopt($ch, CURLOPT_HEADER, 1);
		curl_setopt($ch, CURLOPT_NOBODY, 1);
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,  2);
		curl_setopt($ch, CURLOPT_RETURN_TRANSFER, true);
		$headers = curl_exec($ch);
		if(curl_errno($ch)==0) {
			fseek($stderr, 0);
			while(!feof($stderr)) {
				$raw .= fread($stderr, 8192);
			}
			fclose($stderr);
		} else {
			$error = curl_errno($ch) . ' ' . curl_error($ch);
		}
		curl_close($ch);
	}

	return Array(
		'raw'           =>      $raw,
		'headers'       =>      $headers,
		'error'         =>      $error
	);
}