Fsockopen::request( string|WpOrg\Requests\Transport\Stringable $url, array $headers = [], string|array $data = [], array $options = [] ): string

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$urlstring|WpOrg\Requests\Transport\Stringable

URL to request

$headersarrayoptional

Associative array of request headersDefault: []

$datastring|arrayoptional

Data to send either as the POST body, or as parameters in the URL for a GET/HEADDefault: []

$optionsarrayoptional

Request options, see \WpOrg\Requests\Requests::response() for documentationDefault: []

Return value

string

Raw HTTP result

Performance profile

How much work a call to Fsockopen::request() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reads or writes the filesystem via fwrite().

Scaling

Scales with input

The body loops, so the work grows with what you pass in.

Instructions

163–229

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 510.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• filesystemfilesystem accessfwrite()called directly

What one call costs · 8 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost Fsockopen::request() can have, taken from its control-flow graph on PHP 8.5.

This body has more branch combinations than are worth enumerating, so the table covers the outcomes found first rather than every one that exists.

Uses · 8

• \WpOrg\Requests\Utility\InputValidator::is_string_or_stringable()
• \WpOrg\Requests\Exception\InvalidArgument::create()
• \WpOrg\Requests\Exception::__construct()
• \WpOrg\Requests\Utility\CaseInsensitiveDictionary::__construct()
• \WpOrg\Requests\Transport\Fsockopen::verify_certificate_from_context()
• \WpOrg\Requests\Transport\Fsockopen::format_get()
• \WpOrg\Requests\Transport\Fsockopen::accept_encoding()
• \WpOrg\Requests\Requests::flatten()

Source code

View on Trac ↗View on GitHub ↗

77	public function request($url, $headers = [], $data = [], $options = []) {78		if (InputValidator::is_string_or_stringable($url) === false) {79			throw InvalidArgument::create(1, '$url', 'string|Stringable', gettype($url));80		}81 82		if (is_array($headers) === false) {83			throw InvalidArgument::create(2, '$headers', 'array', gettype($headers));84		}85 86		if (!is_array($data) && !is_string($data)) {87			if ($data === null) {88				$data = '';89			} else {90				throw InvalidArgument::create(3, '$data', 'array|string', gettype($data));91			}92		}93 94		if (is_array($options) === false) {95			throw InvalidArgument::create(4, '$options', 'array', gettype($options));96		}97 98		$options['hooks']->dispatch('fsockopen.before_request');99 100		$url_parts = parse_url($url);101		if (empty($url_parts)) {102			throw new Exception('Invalid URL.', 'invalidurl', $url);103		}104 105		$host                     = $url_parts['host'];106		$context                  = stream_context_create();107		$verifyname               = false;108		$case_insensitive_headers = new CaseInsensitiveDictionary($headers);109 110		// HTTPS support111		if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https') {112			$remote_socket = 'ssl://' . $host;113			if (!isset($url_parts['port'])) {114				$url_parts['port'] = Port::HTTPS;115			}116 117			$context_options = [118				'verify_peer'       => true,119				'capture_peer_cert' => true,120			];121			$verifyname      = true;122 123			// SNI, if enabled (OpenSSL >=0.9.8j)124			// phpcs:ignore PHPCompatibility.Constants.NewConstants.openssl_tlsext_server_nameFound125			if (defined('OPENSSL_TLSEXT_SERVER_NAME') && OPENSSL_TLSEXT_SERVER_NAME) {126				$context_options['SNI_enabled'] = true;127				if (isset($options['verifyname']) && $options['verifyname'] === false) {128					$context_options['SNI_enabled'] = false;129				}130			}131 132			if (isset($options['verify'])) {133				if ($options['verify'] === false) {134					$context_options['verify_peer']      = false;135					$context_options['verify_peer_name'] = false;136					$verifyname                          = false;137				} elseif (is_string($options['verify'])) {138					$context_options['cafile'] = $options['verify'];139				}140			}141 142			if (isset($options['verifyname']) && $options['verifyname'] === false) {143				$context_options['verify_peer_name'] = false;144				$verifyname                          = false;145			}146 147			// Handle the PHP 8.4 deprecation (PHP 9.0 removal) of the function signature we use for stream_context_set_option().148			// Ref: https://wiki.php.net/rfc/deprecate_functions_with_overloaded_signatures#stream_context_set_option149			if (function_exists('stream_context_set_options')) {150				// PHP 8.3+.151				// phpcs:ignore PHPCompatibility.FunctionUse.NewFunctions.stream_context_set_optionsFound152				stream_context_set_options($context, ['ssl' => $context_options]);153			} else {154				// PHP < 8.3.155				// phpcs:ignore PHPCompatibility.FunctionUse.OptionalToRequiredFunctionParameters156				stream_context_set_option($context, ['ssl' => $context_options]);

Changelog

Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.1.0 tag, from 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.

Corrections

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