[python&php 网络编程]完整的socket服务端客户端

1.python服务端

import socket
import argparse

host = 'localhost'
data_payload = 2048
backlog = 5 


def echo_server(port):
    """ A simple echo server """
    # Create a TCP socket
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    # Enable reuse address/port 
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    # Bind the socket to the port
    server_address = (host, port)
    print "Starting up echo server  on %s port %s" % server_address
    sock.bind(server_address)
    # Listen to clients, backlog argument specifies the max no. of queued connections
    sock.listen(backlog) 
    while True: 
        print "Waiting to receive message from client"
        client, address = sock.accept() 
        data = client.recv(data_payload) 
        if data:
            print "Data: %s" %data
            client.send(data)
            print "sent %s bytes back to %s" % (data, address)
        # end connection
        client.close() 
   
if __name__ == '__main__':
    parser = argparse.ArgumentParser(description='Socket Server Example')
    parser.add_argument('--port', action="store", dest="port", type=int, required=True)
    given_args = parser.parse_args() 
    port = given_args.port
    echo_server(port)

2.python客户端

import socket
import argparse

host = 'localhost'

def echo_client(port):
    """ A simple echo client """
    # Create a TCP/IP socket
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    # Connect the socket to the server
    server_address = (host, port)
    print "Connecting to %s port %s" % server_address
    sock.connect(server_address)
    
    # Send data
    try:
        # Send data
        message = "Test message. This will be echoed"
        print "Sending %s" % message
        sock.sendall(message)
        # Look for the response
        amount_received = 0
        amount_expected = len(message)
        while amount_received < amount_expected:
            data = sock.recv(16)
            amount_received += len(data)
            print "Received: %s" % data
    except socket.errno, e:
        print "Socket error: %s" %str(e)
    except Exception, e:
        print "Other exception: %s" %str(e)
    finally:
        print "Closing connection to the server"
        sock.close()
    
if __name__ == '__main__':
    parser = argparse.ArgumentParser(description='Socket Server Example')
    parser.add_argument('--port', action="store", dest="port", type=int, required=True)
    given_args = parser.parse_args() 
    port = given_args.port
    echo_client(port)

启动服务端，由于用了pasrearg模块 因此需要 在启动命令后面加上 --port = 8888 来指定某个端口，然后再运行客户端脚本，发现在两边都会有信息输出，客户端发送完后关闭socket，服务端则一直监听8888端口。

3.php服务端

<?php
$host = "127.0.0.1";
$port = 8888;
set_time_limit(0);
$socket = socket_create(AF_INET, SOCK_STREAM, 0);
socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);
printf("Starting up echo server  on %s port %s\n", $host, $port);
$result = socket_bind($socket, $host, $port);
print("Waiting to receive message from client\n");
$result = socket_listen($socket, 3);
for (; ;) {
    $spawn = socket_accept($socket) or die("Could not accept incoming connection\n");
    $input = socket_read($spawn, 1024) or die("Could not read input\n");
    $input = trim($input);
    echo "Client Message : " . $input . "\n";
    $output = strrev($input) . "\n";
    socket_write($spawn, $output, strlen($output)) or die("Could not write output\n");
    socket_close($spawn);
}

4.php客户端

<?php
$host = "127.0.0.1";
$port = 8888;

printf("Connecting to %s port %s\n", $host, $port);
$message = "Test message. This will be echoed";
print("Sending " . $message);
$socket = socket_create(AF_INET, SOCK_STREAM, 0) or die("Could not create socket\n");
$result = socket_connect($socket, $host, $port) or die("Could not connect to server\n");
socket_write($socket, $message, strlen($message)) or die("Could not send data to server\n");
$result = socket_read($socket, 1024) or die("Could not read server response\n");
echo "\nReceived :" . $result;
socket_close($socket);

php码出来的代码风格没python那么优雅（也可能是我偷懒） 但都差不多，码socket不会比写业务逻辑高级，都是码代码，php也用cli方式运行，用cgi方式跑又不设置超时时间的话 会超时的.

5.UDP php服务端

<?php
 
//Reduce errors
error_reporting(~E_WARNING);
 
//Create a UDP socket
if(!($sock = socket_create(AF_INET, SOCK_DGRAM, 0)))
{
    $errorcode = socket_last_error();
    $errormsg = socket_strerror($errorcode);
     
    die("Couldn't create socket: [$errorcode] $errormsg \n");
}
 
echo "Socket created \n";
 
// Bind the source address
if( !socket_bind($sock, "0.0.0.0" , 9999) )
{
    $errorcode = socket_last_error();
    $errormsg = socket_strerror($errorcode);
     
    die("Could not bind socket : [$errorcode] $errormsg \n");
}
 
echo "Socket bind OK \n";
 
//Do some communication, this loop can handle multiple clients
while(1)
{
    echo "Waiting for data ... \n";
     
    //Receive some data
    $r = socket_recvfrom($sock, $buf, 512, 0, $remote_ip, $remote_port);
    echo "$remote_ip : $remote_port -- " . $buf;
     
    //Send back the data to the client
    socket_sendto($sock, "OK " . $buf , 100 , 0 , $remote_ip , $remote_port);
}
 
socket_close($sock);

6.UDP php客户端

<?php
 
/*
    Simple php udp socket client
*/
 
//Reduce errors
error_reporting(~E_WARNING);
 
$server = '127.0.0.1';
$port = 9999;
 
if(!($sock = socket_create(AF_INET, SOCK_DGRAM, 0)))
{
    $errorcode = socket_last_error();
    $errormsg = socket_strerror($errorcode);
     
    die("Couldn't create socket: [$errorcode] $errormsg \n");
}
 
echo "Socket created \n";
 
//Communication loop
while(1)
{
    //Take some input to send
    echo 'Enter a message to send : ';
    $input = fgets(STDIN);
     
    //Send the message to the server
    if( ! socket_sendto($sock, $input , strlen($input) , 0 , $server , $port))
    {
        $errorcode = socket_last_error();
        $errormsg = socket_strerror($errorcode);
         
        die("Could not send data: [$errorcode] $errormsg \n");
    }
         
    //Now receive reply from server and print it
    if(socket_recv ( $sock , $reply , 2045 , MSG_WAITALL ) === FALSE)
    {
        $errorcode = socket_last_error();
        $errormsg = socket_strerror($errorcode);
         
        die("Could not receive data: [$errorcode] $errormsg \n");
    }
     
    echo "Reply : $reply";
}

php官方文档在udp socket方面没有完整的例子，这里贴一个备用吧 :)

转载请标注原文地址：http://blog.youkuaiyun.com/ddjohn/article/details/50041763