how to make a connection between php and android - php

Question

here is a method in an android application, listen to message send by a php file in a web server
public void run() {
try {
Log.i("------Connect--------", "------------1-------------");
//System.out.println("S: Connecting...");
ServerSocket serverSocket = new ServerSocket(SERVERPORT);
Log.i("------xxxxxxxxx--------", "------------2-------------");
while (true) {
x++;
Log.i("------xxxxxxxxxx--------","-----------"+x+"-----------");
Log.i("------xxxxxxxxxx--------", "-----------pret de listener------------");
Socket client = serverSocket.accept();
Log.i("------xxxxxxxxxx--------", "-----------en cours de listening-------------");
try {
BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
String str = in.readLine();
Log.i("------xxxxxxxxxx--------", str + "-------------");
//System.out.println("S: Received: '" +);
} catch(Exception e) {
Log.i("------xxxxxxxxxx--------", "S: Error");
} finally {
client.close();
Log.i("------xxxxxxxxxx--------","S: Done.");
}
}
} catch (Exception e) {
Log.i("------xxxxxxxxxx--------","S: Error");
}
the next php code to send a string to an ip from emulator android
<?php
error_reporting(E_ALL);
/* define socket server ip and port here.. */
$socket_ip = "10.0.0.2";
$socket_port = 6060;
set_time_limit(0);
/* create a tcp/ip socket.. */
$socket = socket_create(AF_INET, SOCK_STREAM, 0);
if ($socket === false) {
$error = socket_strerror(socket_last_error());
echo "socket_create() failed: [$result] $error\n";
} else {
echo "socket_create() ok.\n";
}
/* connect to socket server ip and port */
$result = socket_connect($socket, $socket_ip, $socket_port);
if ($result === false) {
$error = socket_strerror(socket_last_error($socket));
echo "socket_connect() failed: [$result] $error\n";
} else {
echo "socket_connect() ok.\n";
}
$in = "\r\n\r\n";
$len = strlen($in);
echo "sending input data request.\n";
socket_write($socket, $in, $len);
echo "socket_write() ok.\n";
echo "reading return data.\n";
while ($out = socket_read($socket, 6060)) {
echo "socket_read() : $out";
}
echo "closing the socket.";
socket_close($socket);
echo "socket_close() ok.\n\n";
?>
the problem is when execute command '$ result = socket_connect ($ socket, $ socket_ip, $ socket_port);'finds no answer

Answer 1

If you want to pull data from the server, use Josephs tutorial. If you want to push data from the server to the phone, use Google Cloud Messaging. This way the server can let the phone know that there is new data available. You still need to pull it then. You should not push data through a socket to the phone.