curl_multi_close - PHP code example

The php Function Curl_Multi_Close Closes a CURL Session

PHP has many built-in functions that can be used to perform specific tasks. These functions are called using a function name, which must be unique and start with a letter or underscore. Information can be passed to functions through arguments, which are placed after the function name inside parentheses. Arguments can be of any type, and you can add as many as you want to a function. Functions can also return a value, which is returned to the caller of the function.

cURL is a library and command-line tool that allows us to send and receive data utilizing the URL syntax. It can connect to a variety of websites and domains and transfer data in multiple formats. Among other things, it can submit forms automatically, authenticate users and set cookies.

It can also be used to download files from other servers like JSON or to transfer data between different servers. Adding this library to your website application can make it more secure and faster to process data. It is especially useful in connecting with APIs and web services for payment gateways, scraping, adding and deleting data and more.

The php function curl_multi_close closes a cURL session by sending a close request to the server. The cURL handle, which must be created with curl_init, is then freed from the multi-handle object. This is a new function as of PHP 8.0.0; prior to that, this function was simply called curl_multi_select() and expected a CurlMultiHandle instance instead of a resource.

curl_multi_close example

if (!is_string($responses[$key])) {
                    $options['hooks']->dispatch('multiple.request.complete', [&$responses[$key], $key]);
                }

                $completed++;
            }
        } while ($active || $completed < $subrequestcount);

        $request['options']['hooks']->dispatch('curl.after_multi_exec', [&$multihandle]);

        curl_multi_close($multihandle);

        return $responses;
    }

    /** * Get the cURL handle for use in a multi-request * * @param string $url URL to request * @param array $headers Associative array of request headers * @param string|array $data Data to send either as the POST body, or as parameters in the URL for a GET/HEAD * @param array $options Request options, see {@see \WpOrg\Requests\Requests::response()} for documentation * @return resource|\CurlHandle Subrequest's cURL handle */

foreach ($this->options as $option => $value) {
            // A warning is raised in case of a wrong option.             curl_multi_setopt($this->_mh, $option, $value);
        }

        return $this->_mh;
    }

    public function __destruct()
    {
        if (isset($this->_mh)) {
            \curl_multi_close($this->_mh);
            unset($this->_mh);
        }
    }

    public function __invoke(RequestInterface $request, array $options): PromiseInterface
    {
        $easy = $this->factory->create($request, $options);
        $id = (int) $easy->handle;

        $promise = new Promise(
            [$this, 'execute'],