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".

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