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最近几天我一直在尝试发送（通过表单（输入，提交按钮））并通过 php 脚本将数据接收到 android 应用程序。我设法做到了，但我不喜欢这个解决方案。我所做的是：创建了一个表单：

<form action="index.php" method="get">
        <strong>Please give me a shell command:</strong> <br><input type="text" name="cmd" onmouseover="this.focus(); this.select();"><br>
        <input type="submit" value="Submit">
</form>

当点击提交按钮时：

<?php
if ( isset($_GET['cmd'])  ){
    $cmd = $_GET['cmd'];
    if (empty($cmd)){
         echo 'Please fill in a command first!';
    }else{
         echo "You gave me : \"$cmd\", right?<br>";
    }

        // don't timeout! 
    set_time_limit(0); 
    // set some variables 
    //$host = $_SERVER['HTTP_HOST'];
    $host = '10.16.5.191';
    $port = 5000;

    // 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"); 
    // accept incoming connections 
    // spawn another socket to handle communication 
    $spawn = socket_accept($socket) or die("Could not accept incoming connection\n");

    $output = $cmd;

    socket_write($spawn, $output, strlen ($output)) or die("Could not write output\n"); 

    // read client input 
    $input = socket_read($spawn, 1024) or die("Could not read input\n"); 
    // clean up input string 
    $input = trim($input);  

    echo "I have read :</br> $input";
}
?>

但后来我意识到想在按下提交按钮时打开一个连接（直到 socket_accept()）并发送数据（socket_write()）。

所以我这样做了：

<?php

    if ( isset($_GET['cmd']) ){
        main($_GET['cmd'],$spawn);
        return;
    }else{

        // don't timeout! 
        set_time_limit(0); 
        // set some variables 
        //$host = $_SERVER['HTTP_HOST'];
        $host = '192.168.10.21';
        $port = 5000;

        // 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"); 
        // accept incoming connections 
        // spawn another socket to handle communication 
        $spawn = socket_accept($socket) or die("Could not accept incoming connection\n"); 
        echo "spawn: $spawn</br>";


      echo '
        <form action="" method="get">
            <strong>Please give me a shell command:</strong> <br><input type="text" name="cmd" onmouseover="this.focus(); this.select();"><br>
            <input type="submit" value="Submit">
        </form>
      ';
        }
function main($cmd,$spawn){

        // 1. Checks if the form is set

        if (empty($cmd)){
            echo 'Please fill in a command first!';
        }else{
            echo "You gave me : \"$cmd\", right?<br>";
        }
        $output = $cmd;

        socket_write($spawn, $output, strlen ($output)) or die("Could not write output\n"); 

        // read client input 
        $input = socket_read($spawn, 1024) or die("Could not read input\n"); 
        // clean up input string 
        $input = trim($input);  

        echo "I have read :</br> $input";
}
?>

所以现在我建立连接，然后我的 php 脚本结束！当我通过提交按钮发送东西时，$spawn 是未知的。

我也试过 $_SESSION[''] 但 socket_write() 说 $_SESSION[''] 变量是整数而不是资源变量。

android 代码非常简单，只需打开一个连接（通过套接字），读取和写入。

我是 PHP 编码新手（最近 3 天学习）我该怎么办？有更好的方法吗？我希望连接仅在​​本地网络上！

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