stream_socket_enable_crypto(3) [php man page]

STREAM_SOCKET_ENABLE_CRYPTO(3)						 1					    STREAM_SOCKET_ENABLE_CRYPTO(3)

stream_socket_enable_crypto - Turns encryption on/off on an already connected socket

SYNOPSIS

       mixed stream_socket_enable_crypto (resource  $stream, bool  $enable, [int  $crypto_type], [resource  $session_stream])

DESCRIPTION

	Enable or disable encryption on the stream.

	Once the crypto settings are established, cryptography can be turned on and off dynamically by passing TRUE or FALSE in the $enable param-
       eter.

PARAMETERS

	      o $stream
		- The stream resource.

	      o $enable
		- Enable/disable cryptography on the stream.

	      o $crypto_type
		- Setup encryption on the stream. Valid methods are

		     o STREAM_CRYPTO_METHOD_SSLv2_CLIENT

		     o STREAM_CRYPTO_METHOD_SSLv3_CLIENT

		     o STREAM_CRYPTO_METHOD_SSLv23_CLIENT

		     o STREAM_CRYPTO_METHOD_TLS_CLIENT

		     o STREAM_CRYPTO_METHOD_SSLv2_SERVER

		     o STREAM_CRYPTO_METHOD_SSLv3_SERVER

		     o STREAM_CRYPTO_METHOD_SSLv23_SERVER

		     o STREAM_CRYPTO_METHOD_TLS_SERVER

	       If omitted, the $crypto_type context option on the stream's SSL context will be used instead.

	      o $session_stream
		- Seed the stream with settings from $session_stream.

RETURN VALUES

	Returns TRUE on success, FALSE if negotiation has failed or 0 if there isn't enough data and you should try again (only  for  non-blocking
       sockets).

CHANGELOG

       +--------+------------------------------------+
       |Version |				     |
       |	|				     |
       |	|	     Description	     |
       |	|				     |
       +--------+------------------------------------+
       | 5.6.0	|				     |
       |	|				     |
       |	|  The $crypto_type is now optional. |
       |	|				     |
       +--------+------------------------------------+
EXAMPLES

       Example #1

	      stream_socket_enable_crypto(3) example

	      <?php
	      $fp = stream_socket_client("tcp://myproto.example.com:31337", $errno, $errstr, 30);
	      if (!$fp) {
		  die("Unable to connect: $errstr ($errno)");
	      }

	      /* Turn on encryption for login phase */
	      stream_socket_enable_crypto($fp, true, STREAM_CRYPTO_METHOD_SSLv23_CLIENT);
	      fwrite($fp, "USER god
");
	      fwrite($fp, "PASS secret
");

	      /* Turn off encryption for the rest */
	      stream_socket_enable_crypto($fp, false);

	      while ($motd = fgets($fp)) {
		  echo $motd;
	      }

	      fclose($fp);
	      ?>

	      The above example will output something similar to:

SEE ALSO

       "OpenSSL Functions", "List of Supported Socket Transports".

PHP Documentation Group 											    STREAM_SOCKET_ENABLE_CRYPTO(3)

STREAM_GET_META_DATA(3) 						 1						   STREAM_GET_META_DATA(3)

stream_get_meta_data - Retrieves header/meta data from streams/file pointers

SYNOPSIS

       array stream_get_meta_data (resource  $stream)

DESCRIPTION

	Returns information about an existing $stream.

PARAMETERS

	      o $stream
		- The stream can be any stream created by fopen(3), fsockopen(3) and pfsockopen(3).

RETURN VALUES

	The result array contains the following items:

	      o timed_out (bool) - TRUE if the stream timed out while waiting for data on the last call to fread(3) or fgets(3).

	      o blocked (bool) - TRUE if the stream is in blocking IO mode. See stream_set_blocking(3).

	      o eof  (bool)  -	TRUE  if  the  stream  has  reached  end-of-file.  Note  that for socket streams this member can be TRUE even when
		unread_bytes is non-zero. To determine if there is more data to be read, use feof(3) instead of reading this item.

	      o unread_bytes (int) - the number of bytes currently contained in the PHP's own internal buffer.

	      Note

		      You shouldn't use this value in a script.

	      o stream_type (string) - a label describing the underlying implementation of the stream.

	      o wrapper_type (string) - a label describing the protocol wrapper implementation layered over the stream. See  "Supported  Protocols
		and Wrappers" for more information about wrappers.

	      o wrapper_data  (mixed) - wrapper specific data attached to this stream. See "Supported Protocols and Wrappers" for more information
		about wrappers and their wrapper data.

	      o mode (string) - the type of access required for this stream (see Table 1 of the fopen() reference)

	      o seekable (bool) - whether the current stream can be seeked.

	      o uri (string) - the URI/filename associated with this stream.

EXAMPLES

       Example #1

	      stream_get_meta_data(3) example

	      <?php
	      $url = 'http://www.example.com/';

	      if (!$fp = fopen($url, 'r')) {
		  trigger_error("Unable to open URL ($url)", E_USER_ERROR);
	      }

	      $meta = stream_get_meta_data($fp);

	      print_r($meta);

	      fclose($fp);
	      ?>

	      The above example will output something similar to:

	      Array
	      (
		  [wrapper_data] => Array
		      (
			  [0] => HTTP/1.1 200 OK
			  [1] => Server: Apache/2.2.3 (Red Hat)
			  [2] => Last-Modified: Tue, 15 Nov 2005 13:24:10 GMT
			  [3] => ETag: "b300b4-1b6-4059a80bfd280"
			  [4] => Accept-Ranges: bytes
			  [5] => Content-Type: text/html; charset=UTF-8
			  [6] => Set-Cookie: FOO=BAR; expires=Fri, 21-Dec-2012 12:00:00 GMT; path=/; domain=.example.com
			  [6] => Connection: close
			  [7] => Date: Fri, 16 Oct 2009 12:00:00 GMT
			  [8] => Age: 1164
			  [9] => Content-Length: 438
		      )

		  [wrapper_type] => http
		  [stream_type] => tcp_socket/ssl
		  [mode] => r
		  [unread_bytes] => 438
		  [seekable] =>
		  [uri] => http://www.example.com/
		  [timed_out] =>
		  [blocked] => 1
		  [eof] =>
	      )

NOTES

       Note

	      This function does NOT work on sockets created by the Socket extension.

SEE ALSO

       get_headers(3), $http_response_header.

PHP Documentation Group 												   STREAM_GET_META_DATA(3)