Sending json data through PHP sockets in Windows 7 command line windows - php

Question

I checked
php sockets read json array from java server
Sending configuration data to websocket
and spent all day on finding the solution for the following problem.
I have Client.php
<?php
if(!($sock = socket_create(AF_INET, SOCK_STREAM, 0)))
{
$errorcode = socket_last_error();
$errormsg = socket_strerror($errorcode);
die("Couldn't create socket: [$errorcode] $errormsg \n");
}
echo "Socket created \n";
//Connect socket to remote server
if(!socket_connect($sock , '127.0.0.1', 23))
{
$errorcode = socket_last_error();
$errormsg = socket_strerror($errorcode);
die("Could not connect: [$errorcode] $errormsg \n");
}
echo "Connection established \n";
$data = file_get_contents ("C:\Users\(myUsername here)\Desktop\sockets\Test.txt");
$json = json_decode($data, true);
echo $data . " this is data from file\n";
echo $json . " this is decoded version\n";
echo json_encode($data) . " this is encoded version\n";
$jsonSer = serialize($json);
//socket_write($sock, count($json). "\n\r");
socket_write($sock, $jsonSer);
echo $jsonSer . " this is serialized version\n";
echo unserialize($jsonSer) . " this is unserialized message\n";
//Send the message to the server
//$sock , $message , strlen($message) , 0
//JSON.stringify(data)
if( ! socket_send($sock, $jsonSer, 1024, 0))
{
$errorcode = socket_last_error();
$errormsg = socket_strerror($errorcode);
die("Could not send data: [$errorcode] $errormsg \n\r");
}
echo "Message send successfully \n";
?>
And Server.php
<?php
// we create the socket (domain, type, protocol)
$socket = socket_create(AF_INET, SOCK_STREAM, 0);
// AF_UNIX
// if false we pass error code to strerror to get a textual explanation of the error
// and exit execution of the code
if (!$socket) {
echo "Couldn't create socket";
exit(socket_strerror(socket_last_error()));
}
echo "Socket created.\n";
//$address = '127.0.0.1';
//$port = '23';
// we bind the name given in address to the socket
$socket_bound = socket_bind ($socket , '127.0.0.1', 23);
if (!$socket_bound) {
echo "Couldn't bind socket";
exit(socket_strerror(socket_last_error()));
}
echo "Socket bound.\n";
// we tell the socket to listen for incoming connections on socket and keep them in
// backlog (e.g. 25)
$backlog = 25;
$socket_is_listening = socket_listen($socket, $backlog);
if (!$socket_is_listening) {
echo "Socket is not listening";
exit(socket_strerror(socket_last_error()));
}
echo "Socket is listening...\n";
// we set socket to be non-blocking in order to fork connections
socket_set_nonblock($socket);
echo "Waiting for connections...\n";
$server_is_listening = true;
while($server_is_listening) {
// Accept incoming connection
$connection = socket_accept($socket);
if (!$connection){
// we check every 100ms for new connections
usleep(100);
}elseif($connection>0){
// fork connections
// update connections progress and tell the user
// parse json to php object or array (2nd para = 1)
//$database_data_php = json_decode($database_data_json,0);
// accept incoming connection
/* //display information about the client who is connected
if(socket_getpeername($client , $address , $port))
{
echo "Client $address : $port is now connected to us.";
}*/
$response = "Amazing, server responded";
echo "Yay !!! We have a connection\n";
if(socket_getpeername($connection , $address , $port))
{
echo "Client $address : $port is now connected to us. \n";
echo "Connection is: $connection\n";
}
//Now receive reply from server
/*socket_recv ( $connection , $data , 2045 , MSG_WAITALL )*/
//socket_read($connection, 512, PHP_NORMAL_READ);
$input = socket_read($socket, $spawn, 1024);
echo $input . " INPUT";
$buffer = socket_recv($socket, $dataIn, 1024, 0);
echo $buffer . " buffer";
if(!socket_recv($socket, $dataIn, 1024, MSG_WAITALL)){
$errorcode = socket_last_error();
$errormsg = socket_strerror($errorcode);
die("Could not receive data: [$errorcode] $errormsg \n");
}
//print the received message
$response = unserialize($dataIn);
echo $dataIn;
//echo $buff;
socket_write($connection, $response);
//socket_close($connection);
}else{
echo "Error: ".socket_sterror($connection);
die;
}
}
I use windows 7 atm but the app will be run on unix system in command line. I open 2 cmd windows and start Server.php in first. I start Client.php in the second cmd window. I get the following errors (Server.php).
Socket created.
Socket bound.
Socket is listening...
Waiting for connections...
Yay !!! We have a connection
Client 127.0.0.1 : 50162 is now connected to us.
Connection is: Resource id #5
C:\Users\(myUsername here)\Desktop\sockets\Server.php on line 70
PHP Warning: socket_recv(): unable to read from socket [0]: The operation completed successfully.
in C:\Users\(myUsername here)\Desktop\sockets\Server.php on line 72
Warning: socket_recv(): unable to read from socket [0]: The operation completed successfully.
in C:\Users\(myUsername here)\Desktop\sockets\Server.php on line 72
PHP Warning: socket_recv(): unable to read from socket [0]: The operation completed successfully.
in C:\Users\(myUsername here)\Desktop\sockets\Server.php on line 75
Warning: socket_recv(): unable to read from socket [0]: The operation completed successfully.
in C:\Users\(myUsername here)\Desktop\sockets\Server.php on line 75
Could not receive data: [0] The operation completed successfully.
When I sent a string there was no problem. How do I have proceed with json data please ?

Answer 1

Was given the solution. I need to send json as string and it worked.
Client.php below
$jsonString = "";
$handle = fopen("C:\Users\(myUsername)\Desktop\sockets\Test.txt", "r");
if ($handle) {
while (($buffer = fgets($handle, 4096)) !== false) {
echo $buffer."\n";
//echo gettype($buffer)." buffer inside";
$jsonString.=$buffer;
}
if (!feof($handle)) {
echo "Error: unexpected fgets() fail\n";
}
}
socket_write($sock, $jsonString);
fclose($handle);
Server.php below
$jsonString = "";
if(!socket_last_error($socket)){
while($buffer=socket_read($connection,2048)){
//echo $buffer;
$jsonString.=$buffer;
}
}
echo $jsonString;
I hope it can help someone and save some headache.