Description:
------------
The first example on the Sockets section of the manual uses socket_bind and socket_listen incorrectly. They manual page for each function correctly states that they return BOOLEAN values, not error return codes. That means the lines:

if (($ret = socket_bind($sock, $address, $port)) < 0) {
   echo "socket_bind() failed: reason: " . socket_strerror($ret) . "\n";
}

if (($ret = socket_listen($sock, 5)) < 0) {
   echo "socket_listen() failed: reason: " . socket_strerror($ret) . "\n";
}

Will not fail, if there is an error. If they did fail, they would not report any meaningful error message (error 0 ie false is "success"). 



Reproduce code:
---------------
if (($ret = socket_bind($sock, $address, $port)) < 0) {
   echo "socket_bind() failed: reason: " . socket_strerror($ret) . "\n";
}

if (($ret = socket_listen($sock, 5)) < 0) {
   echo "socket_listen() failed: reason: " . socket_strerror($ret) . "\n";
}

Expected result:
----------------
If the socket is not available it should stop the execution of the script and display a meaningful error message. 

Actual result:
--------------
It will continue to run the code below, even if there really was an error. If it did stop, it would not print the correct error message