socket_connect is working, but not socket_bind showing warring - php

Question

With my code, I can connect properly but socket bind is not working please help me.
Showing this error:
Warning: socket_bind(): unable to bind address [99]: Cannot assign requested address in /opt/lampp/htdocs/testingServer/socket.php on line 35
socket_bind() failed: reason: Cannot assign requested address
Warning: socket_listen(): unable to listen on socket [22]: Invalid argument in /opt/lampp/htdocs/testingServer/socket.php on line 39
socket_listen() failed: reason: Invalid argument
Here's the code :
$address = '192.168.0.250';
$port = 8050;
/* Get the port for the WWW service. */
// echo $port = getservbyname('www', 'tcp');
if (($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {
echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
} else {
echo "<pre/>";
print_r($sock);
echo "Socket created"; echo "<br/>";
}
// check ip and port showing online or offline
if (!$socket = #fsockopen($address, $port, $errno, $errstr, 3)) {
echo "Offline!";
} else {
echo "Online!";
fclose($socket);
}
$result = socket_connect($sock, $address, $port) ;
var_dump($result);
if ($result === false) {
echo "socket_connect() failed.\nReason: ($result) " .
socket_strerror(socket_last_error($sock)) . "\n";
}
if (socket_bind($sock, $address, $port) === false) {
echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
}
if (socket_listen($sock,3) === false) {
echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
}
$msg = "\nWelcome to the PHP Test Server. \n" .
"To quit, type 'quit'. To shut down the server type 'shutdown'.\n";
socket_write($sock, $msg, strlen($msg));
socket_close($sock);