[英]Php server socket receiving continuous data from python client socket
I am trying to send data continously from the python client socket to the php server socket, I've been able to send data once and print it out. 我试图将数据从python客户端套接字连续发送到php服务器套接字,我已经能够发送一次数据并打印出来。 But if I put the server in a while loop to keep listening, the data it gets isn't printed out anymore.
但是,如果我将服务器置于while循环中以继续监听,则不再打印输出的数据。 It still responds to the client if I send something back to it.
如果我发回一些消息,它仍然会响应客户端。
Python client code (this will be put in a function that gets called every time I send something): Python客户端代码(这将放置在每次我发送内容时都会调用的函数中):
import socket
import sys
def main():
host = 'localhost'
port = 5003 # The same port as used by the server
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print >> sys.stderr, 'connecting to %s port %s' % (host, port)
s.connect((host, port))
s.sendall("Hello! Heartbeat 40!")
data = s.recv(1024)
s.close()
print('Received', repr(data))
if __name__ == "__main__":
main()
Php server code: PHP服务器代码:
<!DOCTYPE html>
<html>
<body>
<?php
// set some variables
$host = "127.0.0.1";
$port = 5003;
// don't timeout!
set_time_limit(0);
// create socket
$socket = socket_create(AF_INET, SOCK_STREAM, 0) or die("Could not create socket\n");
// bind socket to port
$result = socket_bind($socket, $host, $port) or die("Could not bind to socket\n");
// start listening for connections
$result = socket_listen($socket, 3) or die("Could not set up socket listener\n");
while(true){
// accept incoming connections
// spawn another socket to handle communication
$spawn = socket_accept($socket) or die("Could not accept incoming connection\n");
// read client input
$input = socket_read($spawn, 1024) or die("Could not read input\n");
// clean up input string
$input = trim($input);
echo "Client Message : ".$input;
// socket_close($spawn);
}
socket_close($socket);
?>
</body>
</html>
PHP output is not being send to the browser immediately. PHP输出不会立即发送到浏览器。 Httpd server waits for php script to finish, then send the whole output to the client.
Httpd服务器等待php脚本完成,然后将整个输出发送到客户端。
while(true){
in your php script runs indefinitely until dies on socket_accept
, socket_read
, or by timeout. while(true){
在您的php脚本中无限期运行,直到死于socket_accept
, socket_read
或超时为止。
You need to define an exit point in your loop to eventually stop the script and send data to the browser. 您需要在循环中定义一个退出点,以最终停止脚本并将数据发送到浏览器。
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