Description:
------------
fsockopen() does not support SSL/TLS with shared OpenSSL extension in domain
ssl:// will attempt to negotiate an SSL V2, or SSL V3 connection depending on the capabilities and preferences of the remote host. sslv2:// and sslv3:// will select the SSL V2 or SSL V3 protocol explicitly. The problem the found is caused by the difference between the client/server encryption methods used

Test script:
---------------
<?php $fp = fsockopen("tls://webmail.example.com", 587, $errno, $errstr); 
stream_socket_enable_crypto($fp, true, STREAM_CRYPTO_METHOD_SSLv23_CLIENT); ?>
creating SSL streams (using https://):
<?php
$context = context_create_stream($context_options)
$fp = fopen('https://url', 'r', false, $context);
?>
  

Expected result:
----------------
A successful SSL/TLS connection.
SSL/TLS client connection over TCP/IP to connect to the remote host

Actual result:
--------------
Warning: fsockopen():
Failed to detect socket transport