(PHP 4 >= 4.1.0, PHP 5)
socket_send — Sends data to a connected socket
$socket
   , string $buf
   , int $len
   , int $flags
   )
   The function socket_send() sends
   len bytes to the socket
   socket from buf.
  
socketA valid socket resource created with socket_create() or socket_accept().
bufA buffer containing the data that will be sent to the remote host.
len
       The number of bytes that will be sent to the remote host from 
       buf.
      
flags
       The value of flags can be any combination of 
       the following flags, joined with the binary OR (|)
       operator.
       
| MSG_OOB | Send OOB (out-of-band) data. | 
| MSG_EOR | Indicate a record mark. The sent data completes the record. | 
| MSG_EOF | Close the sender side of the socket and include an appropriate notification of this at the end of the sent data. The sent data completes the transaction. | 
| MSG_DONTROUTE | Bypass routing, use direct interface. | 
   socket_send() returns the number of bytes sent, or FALSE on error.