wp-includes/Requests/src/Transport/Fsockopen.php:77Perform a request
$urlstring|WpOrg\Requests\Transport\Stringable$headersarrayoptional[]$datastring|arrayoptional[]$optionsarrayoptional[]string public function request($url, $headers = [], $data = [], $options = []) { if (InputValidator::is_string_or_stringable($url) === false) { throw InvalidArgument::create(1, '$url', 'string|Stringable', gettype($url)); } if (is_array($headers) === false) { throw InvalidArgument::create(2, '$headers', 'array', gettype($headers)); } if (!is_array($data) && !is_string($data)) { if ($data === null) { $data = ''; } else { throw InvalidArgument::create(3, '$data', 'array|string', gettype($data)); } } if (is_array($options) === false) { throw InvalidArgument::create(4, '$options', 'array', gettype($options)); } $options['hooks']->dispatch('fsockopen.before_request'); $url_parts = parse_url($url); if (empty($url_parts)) { throw new Exception('Invalid URL.', 'invalidurl', $url); } $host = $url_parts['host']; $context = stream_context_create(); $verifyname = false; $case_insensitive_headers = new CaseInsensitiveDictionary($headers); // HTTPS support if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https') { $remote_socket = 'ssl://' . $host; if (!isset($url_parts['port'])) { $url_parts['port'] = Port::HTTPS; } $context_options = [ 'verify_peer' => true, 'capture_peer_cert' => true, ]; $verifyname = true; // SNI, if enabled (OpenSSL >=0.9.8j) // phpcs:ignore PHPCompatibility.Constants.NewConstants.openssl_tlsext_server_nameFound if (defined('OPENSSL_TLSEXT_SERVER_NAME') && OPENSSL_TLSEXT_SERVER_NAME) { $context_options['SNI_enabled'] = true; if (isset($options['verifyname']) && $options['verifyname'] === false) { $context_options['SNI_enabled'] = false; } } if (isset($options['verify'])) { if ($options['verify'] === false) { $context_options['verify_peer'] = false; $context_options['verify_peer_name'] = false; $verifyname = false; } elseif (is_string($options['verify'])) { $context_options['cafile'] = $options['verify']; } } if (isset($options['verifyname']) && $options['verifyname'] === false) { $context_options['verify_peer_name'] = false; $verifyname = false; } // Handle the PHP 8.4 deprecation (PHP 9.0 removal) of the function signature we use for stream_context_set_option(). // Ref: https://wiki.php.net/rfc/deprecate_functions_with_overloaded_signatures#stream_context_set_option if (function_exists('stream_context_set_options')) { // PHP 8.3+. stream_context_set_options($context, ['ssl' => $context_options]); } else { // PHP < 8.3. stream_context_set_option($context, ['ssl' => $context_options]); } } else {Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/Requests/src/Transport/Fsockopen.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.