Description:
------------
When you try to disable encryption on a stream socket (with encryption enabled), the operation succeeds, however PHP reports this as failure. Both the server and client are able to read and write successfully after disabling encryption.

Test script:
---------------
server.php: https://hastebin.com/zuwamexero.xml
client.php: https://hastebin.com/idadesujal.xml


Expected result:
----------------
server:
string(17) "Hello unencrypted"
bool(true)
string(15) "Hello encrypted"
bool(true)
string(17) "Hello unencrypted"

client:
int(17)
bool(true)
int(15)
bool(true)
int(17)

Actual result:
--------------
server:
string(17) "Hello unencrypted"
bool(true)
string(15) "Hello encrypted"
bool(false)
string(17) "Hello unencrypted"

client:
int(17)
bool(true)
int(15)
bool(false)
int(17)