stream_socket_enable_crypto

(no version information, might be only in CVS)

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

Description

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

When called with the crypto_type parameter, stream_socket_enable_crypto() will setup encryption on the stream using the specified method.

Valid values for crypto_type

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

If this stream should be seeded with settings from an already established crypto enabled stream, pass that stream's resource variable in the fourth parameter.

成功回傳TRUE失敗回傳FALSE

示範 1.stream_socket_enable_crypto() 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\r\n");
fwrite($fp, "PASS secret\r\n");
/* Turn off encryption for the rest */
stream_socket_enable_crypto($fp, false);
while (
$motd = fgets($fp)) {
  echo
$motd;
}
fclose($fp);
?>

參考 LXXIX, OpenSSL Functions, and 附錄 N