参考:
https://www.jianshu.com/p/00357c8cd22d
server.php
<?php $ser = stream_socket_server("tcp://0.0.0.0:8000", $errno, $errstr) or die("created server failed!"); while(1) { $conn = stream_socket_accept($ser); if (pcntl_fork() == 0) { while(1) { $request = fread($conn, 1024); // do something $response = "hello, world!" . $request; fwrite($conn, $response); } //fclose($conn); //exit(0); }
之前,旧的版本
<?php $ser = stream_socket_server("tcp://0.0.0.0:8000", $errno, $errstr) or die("created server failed!"); while(1) { $conn = stream_socket_accept($ser); if (pcntl_fork() == 0) { $request = fread($conn, 1024); // do something $response = "hello, world!" . $request; fwrite($conn, $response); fclose($conn); exit(0); } }
旧的版本,可以用客户端 telnet 来进行测试,用下面的client.php来测试,可以多次发送输入的信息到服务端,来交互。
client.php
<?php $socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP); //socket_connect($socket,'127.0.0.1',6666); //socket_connect($socket,'124.156.165.37',6666); socket_connect($socket,'192.168.123.41',8000); while(1) { echo "input:---"; $line = fread(STDIN, 1024); echo $line; //$msg = "hlllo server123 "; socket_write($socket,$line); $res = socket_read($socket,2048); echo $res; }
----------------------------------------------------------------
php的三种CLI常量:STDIN,STDOUT,STDERR
PHP CLI(command line interface)中,有三个系统常量,分别是STDIN、STDOUT、STDERR,代表文件句柄。
应用一:
<?php while($line = fopen('php://stdin','r')){ echo fgets($line); } ?>
应用二:
<?php echo STDIN; ?>
在dos命令行下直接返回STDIN文件指针(文件句柄)。如图:
应用三:
<?php echo fgets(STDIN); ?>
STDIN可以拿到在dos下输入的内容,fgets读取这个STDIN文件句柄,即可打印出刚才输入的内容。如图: