PHPCMS cannot log in or register

Environment:

Operating system: Linux

Server software: nginx/1.1.16PHP/5.3.27

MySQL version: 5.5.34-log

PHPCMS program version: Phpcms V9.5.7 Release 20140625

Problem:

Local: Everything is normal in local debugging

On the server: PHPSSO communication in PHPCMS is successful, account registration and login cannot be performed, and through the tracking code, it is found that the $fp returned in the code below is empty

$fp = @fsockopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout);

Security notification announcement website: http://www.xrnet.cn/store/2012 -01-10.html

Solution:

Replace the fsockopen and pfsockopen functions with other functions, such as stream_socket_client

Examples are as follows
Before modification:

$fp = fsockopen($host, 80, $errno, $errstr, 30);

$fp = fsockopen($host, $port, $errno, $errstr, $connection_timeout);

$fp = stream_socket_client("tcp://".$host."80", $errno, $errstr, 30);

$fp = stream_socket_client("tcp://".$host.":".$port, $errno, $errstr, $connection_timeout);

Comments : DISCUZ communication failure may also be due to this reason!

The above introduces the inability to log in and register with PHPCMS, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.