HTTP and HTTPSПред.Приложение M. List of Supported Protocols/WrappersСлед.

HTTP and HTTPS

PHP 3, PHP4, PHP 5. https://since PHP4.3.0

http://example.com

http://example.com/file.php?var1=val1&var2=val2

http://user:password@example.com

https://example.com

https://example.com/file.php?var1=val1&var2=val2

https://user:password@example.com

Allows read-only access to files/resources via HTTP 1.0, using the HTTP GET method. A Host: header is sent with the request to handle name-based virtual hosts. If you have configured a user_agent string using your ini file or the stream context, it will also be included in the request.

Внимание
При использовании SSL,
Microsoft IIS нарушает протокол, закрывая соединение без отправки
индикатора close_notify. PHP сообщит об этом как о "SSL: Fatal Protocol Error"
в тот момент, когда вы достигнете конца данных. Чтобы обойти это, вы должны
установить error_reporting на
уровень, исключающий E_WARNING.
PHP версий 4.3.7 и старше умеет определять, что на стороне сервера находится
проблемный IIS и не выводит предупреждение.
Если вы используете fsockopen() для создания ssl://сокета,
вы сами отвечаете за определение и подавление этого предупреждения.

- Redirects have been supported since PHP4.0.5; if you are using an earlier version you will need to include trailing slashes in your URLs. If it's important to know the URL of the resource where your document came from (after all redirects have been processed), you'll need to process the series of response headers returned by the stream.

<? $url = 'http://www.example.com/redirecting_page.php'; $fp = fopen($url, 'r'); /*Prior to PHP4.3.0 use $http_response_header instead of stream_get_meta_data()*/ $meta_data = stream_get_meta_data($fp); foreach($meta_data['wrapper_data'] as $response) { /*Were we redirected?*/ if (substr(strtolower($response), 0, 10) == 'location: ') { /*update $url with where we were redirected to*/ $url = substr($response, 10); }}
?>

- The stream allows access to the body of the resource; the headers are stored in the $http_response_header variable. Since PHP4.3.0, the headers are available using stream_get_meta_data().

- HTTP connections are read-only; you cannot write data or copy files to an HTTP resource.

Замечание:HTTPS is supported starting from PHP4.3.0, if you have compiled in support for OpenSSL.

Таблица M-2. Wrapper Summary

Attribute Supported
Restricted by allow_url_fopen. Yes
Allows Reading Yes
Allows Writing No
Allows Appending No
Allows Simultaneous Reading and Writing N/A
Supports stat() No
Supports unlink() No
Supports rename() No
Supports mkdir() No
Supports rmdir() No

Attribute	Supported
Restricted by allow_url_fopen.	Yes
Allows Reading	Yes
Allows Writing	No
Allows Appending	No
Allows Simultaneous Reading and Writing	N/A
Supports stat()	No
Supports unlink()	No
Supports rename()	No
Supports mkdir()	No
Supports rmdir()	No

Таблица M-3. Context options

Name Usage Default
method - GET, POST, or any other HTTP method supported by the remote server.
GET
header Additional headers to be sent during request. Values in this option will override other values (such as User-agent:, Host:, and Authentication:).

user_agent Value to send with User-Agent: header. This value will only be used if user-agent is not specified in the header context option above.
- php.ini setting: user_agent
content - Additional data to be sent after the headers. Typically used with POST or PUT requests.

proxy - URI specifying address of proxy server. (e.g. tcp://proxy.example.com:5100).

request_fulluri - When set to TRUE, the entire URI will be used when constructing the request. (i.e. GET http://www.example.com/path/to/file.html HTTP/1.0). While this is a non-standard request format, some proxy servers require it.
FALSE
max_redirects - The max number of redirects to follow. Added in PHP 5.1.0.
20

Name	Usage	Default
method	- GET, POST, or any other HTTP method supported by the remote server.	GET
header	Additional headers to be sent during request. Values in this option will override other values (such as User-agent:, Host:, and Authentication:).
user_agent	Value to send with User-Agent: header. This value will only be used if user-agent is not specified in the header context option above.	- php.ini setting: user_agent
content	- Additional data to be sent after the headers. Typically used with POST or PUT requests.
proxy	- URI specifying address of proxy server. (e.g. tcp://proxy.example.com:5100).
request_fulluri	- When set to TRUE, the entire URI will be used when constructing the request. (i.e. GET http://www.example.com/path/to/file.html HTTP/1.0). While this is a non-standard request format, some proxy servers require it.	FALSE
max_redirects	- The max number of redirects to follow. Added in PHP 5.1.0.	20

Underlying socket stream context options: Additional context options may be supported by the underlying transport For http://streams, refer to context options for the tcp://transport. For https://streams, refer to context options for the ssl://transport.

Socket

FTP and FTPS 22222