我的php设置中的http_post文件权限错误

I am trying to send an http_post_fields to a server:

 $emailAddress = "email@email.com";
 $emailPassword = "password";
 $post = array ('cmd' => 'cmd_user_login',
                'lcmd' => 'user_delete',
                'show' => 'simple_msg.xml',
                'username' => 'uName',
                'password' => 'uPassword',
                'lusername' => $emailAddress,
                'lpassword' => $emailPassword,
                'uid' => $emailAddress);
 $result = http_post_fields('https://1.2.3.4:7443/cgi/user.cgi',$post);

I am getting the following error in my http error_logs when I try to run this page in a browser:

PHP Warning:  http_post_fields(): Couldn't connect to server; 
Failed to connect to 1.2.3.4:Permission denied

If I try to run this script from command line, it works fine. It seems to be there is a file permissions problem somewhere within my php setup, how do I begin to solve this?

SELinux was preventing the http_post from occuring.