The php Function Curl_Strerror

In php, a function is an executable piece of code that takes in an argument list and returns a value. It is an important part of the programming language as it allows you to reuse the same logic in multiple parts of your application. PHP has many built-in functions that are useful in handling different types of tasks.

PHP is a server-side scripting language that allows you to create web applications. The language is scalable and supports a wide variety of programming paradigms. It is used for creating websites, web services, and mobile apps. It has an extensive set of libraries that can help you develop powerful applications.

The cURL library is one of these libraries that is supported by PHP. cURL is a cross-platform, open-source library that supports several networking protocols. It is used for a variety of purposes, including downloading files, uploading files, and testing APIs.

cURL can also be used to scrape data from web pages and return information, such as images or documents, for use in your PHP code. It can also be used to check the status of URLs, such as whether they are accessible or not.

The php function curl_strerror returns the string which represents the error for the particular current session of cURL. It can be called from any place in your script. The function takes a ch parameter, which is the cURL handle of the current request. It also takes an option, which is a number in the range of constants listed at the bottom of this page.

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curl_strerror example

if (0 === curl_multi_add_handle($multi->handle, $ch)) {
                        continue;
                    }
                }

                if (\CURLE_RECV_ERROR === $result && 'H' === $waitFor[0] && 400 <= ($responses[(int) $ch]->info['http_code'] ?? 0)) {
                    $multi->handlesActivity[$id][] = new FirstChunk();
                }

                $multi->handlesActivity[$id][] = null;
                $multi->handlesActivity[$id][] = \in_array($result, [\CURLE_OK, \CURLE_TOO_MANY_REDIRECTS], true) || '_0' === $waitFor || curl_getinfo($ch, \CURLINFO_SIZE_DOWNLOAD) === curl_getinfo($ch, \CURLINFO_CONTENT_LENGTH_DOWNLOAD) ? null : new TransportException(ucfirst(curl_error($ch) ?: curl_strerror($result)).sprintf(' for "%s".', curl_getinfo($ch, \CURLINFO_EFFECTIVE_URL)));
            }
        } finally {
            $multi->performing = false;
        }
    }

    /** * @param CurlClientState $multi */
    private static function select(ClientState $multi, float $timeout): int
    {
        
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