PHP Socket Programming Read-write blocking after completion

PHP Socket programming Read completion after writing blocking
The server-side code is as follows:

 Set_time_limit (0);
 
$host = "127.0.0.1";
$port = 12345;
 
$socket = Socket_create (Af_inet, Sock_stream, sol_tcp) or Die ("Could not createsocket\n"); Create a socket
 
$result = Socket_bind ($socket, $host, $port) or Die ("Could not bind tosocket\n"); Bind socket to Port
 
$result = Socket_listen ($socket) or Die ("Could not set up socket listener\n"); Start listening for connections
 
$spawn = socket_accept ($socket) or Die ("Could not accept incoming connection\n"); Handling Communications

If you switch to a loop to receive the data, the client will process waiting for the receive state
$input = Socket_read ($spawn, 1024x768) or Die ("Could not read data\n");
/*
while ($data = Socket_read ($spawn, 1024x768) = = False)
$input. = $data;
*/

echo ' input: ', strlen ($input), "\ n";
 
$output = Date ("y-m-d h:i:s"). "\ n"; Processing client input and returning results
 
echo "Output:", $output, "\ n";
 
Data transfer writes the returned results to the client
Socket_write ($spawn, $output, strlen ($output)) or Die ("Could not write output\n");
 
Close sockets
Socket_close ($spawn);
Socket_close ($socket);

Client side, the code is as follows:

 
  
Set_time_limit (0);

$host = "127.0.0.1";
$port = 12345;

$socket = Socket_create (Af_inet, Sock_stream, sol_tcp) or Die ("Could not createsocket\n"); Create a socket

$connection = Socket_connect ($socket, $host, $port) or Die ("Could not connet server\n");  Connection

Socket_write ($socket, "time") or Die ("Write failed\n"); Data transfer sends a message to the server

Echo ' Wait for data ';

while ($buffer = Socket_read ($socket, 1024x768))!=false) {
    Echo ("Data sent Was:time\nresponse was:".) $buffer. "\ n");
}

Socket_close ($socket);

If the server side is replaced with the client read operation as a loop internal read, the client will remain in the wait data state.
Is there a way to let the server loop read the case, after reading to the client to write data?



Socket TCP PHP Server

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------Solution--------------------
You have nothing wrong with this loop, but once the data is sent, the socket connection is closed and there is no need to loop.
------Solution--------------------

while (true) {
    $msg = Socket_accept ($socket);               Accept a socket
    if (! $msg) {
        echo "Socket_accept () failed:". Socket_strerror ($msg). " \ n ";
        Break
    }
    while (true) {
        $command = Strtoupper (Trim (Socket_read ($msg, 1024))); Waiting for client data
        if (! $command) break;
        Related processing, such as direct echo
        Socket_write ($msg, $command, strlen ($command));
    }
    Socket_close ($msg);
    if ($command = = "QUIT")//If you receive the end of the communication
        Break
}
Socket_close ($socket);                   Close socket

------Solution--------------------
reference:

Quote: reference:

 
!--? php
set_time_limit (0); 
 
 $host = "127.0.0.1"; 
 $port = 12345; 
 
 $socket = socket_create (Af_inet, Sock_stream, sol_tcp) or Die ("Could not createsocket\n");//Create a socket 
 
 $result = Socket_bind ($socket, $host, $port) or Die ("Could not bind tosocket\n"); Bind socket to port 
 
 $result = Socket_listen ($socket) or Die ("Could not set up socket listener\n");//Start listening connection 
 
 $sp Awn = socket_accept ($socket) or Die ("Could not accept incoming connection\n"); Processing communication 
 
//If you switch to a loop to receive data, the client will always process waiting for the receive status 
 $input = Socket_read ($spawn, 1024x768) or Die ("Could not read data\n"); 
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