Question

我想为运行for循环获得的每个ip地址执行 tel2.php 。我的tel2.php文件有一个session_start（）。因此，每次for循环脚本运行时，我都会收到错误消息，说明会话已经开始。请指导我如何解决这个问题。谢谢。

<?php
session_start();
include("check.php");
$dbHost = 'localhost';
$dbUsername = 'root';
$dbPassword = '';
$dbName = 'searchrouters';
//connect with the database
$conn = new mysqli($dbHost, $dbUsername, $dbPassword, $dbName);
// Check connection
$checkbox1=$_POST['IP'];
{
    for($i=0; $i<sizeof($checkbox1);$i++){
        $query="INSERT INTO checked (name) VALUES ('".$checkbox1[$i]."')";
        $conn->query($query) or die(mysql_error());
        $_SESSION['ipadd'] = $checkbox1[$i];
        include('tel2.php');
    }   

}
?>

Tel2.php

<?php
session_start();
require_once "PHPTelnet.php";
$telnet = new PHPTelnet();
$telnet->show_connect_error=0;
// if the first argument to Connect is blank,
// PHPTelnet will connect to the local host via 127.0.0.1
$ipadd = $_SESSION['ipadd'];
echo $ipadd;
$result = $telnet->Connect("$ipadd",'nib2p1','nib2p1');
switch ($result) {
case 0: 
$telnet->DoCommand('term length 0', $result);
echo $result;
$telnet->DoCommand('show clock', $result);
// NOTE: $result may contain newlines
echo $result;
// say Disconnect(0); to break the connection without explicitly logging out
$telnet->Disconnect();
break; 
case 1:
echo '[PHP Telnet] Connect failed: Unable to open network connection';
break;
case 2:
echo '[PHP Telnet] Connect failed: Unknown host';
break; 
case 3:
echo '[PHP Telnet] Connect failed: Login failed';
break; 
case 4:
echo '[PHP Telnet] Connect failed: Your PHP version does not support PHP Telnet';
break; 
}
?>

Answer 1

确实像@yafafater在评论中所说的那样

从tel2删除会话启动。一次就够了

更具体地说，我会说以下内容：您提供的两个文件是链接的，一个包含在另一个中。所以基本上你必须将它视为一个文件。此外，您无法在两者之间关闭时启动两次会话，因此只需要一个session_start()。

在PHP将tel2.php文件包含在第一个文件中之后，为了帮助您理解代码看起来如此：

<?php

// start session
session_start();

$dbHost = 'localhost';
$dbUsername = 'root';
$dbPassword = '';
$dbName = 'searchrouters';
//connect with the database
$conn = new mysqli($dbHost, $dbUsername, $dbPassword, $dbName);
// Check connection
$checkbox1=$_POST['IP'];
{
    for($i=0; $i<sizeof($checkbox1);$i++){
        $query="INSERT INTO checked (name) VALUES ('".$checkbox1[$i]."')";
        $conn->query($query) or die(mysql_error());
        $_SESSION['ipadd'] = $checkbox1[$i];

        // include the file tel2.php
        // session can't be started again, it's already on

        require_once "PHPTelnet.php";
        $telnet = new PHPTelnet();
        $telnet->show_connect_error=0;
        $ipadd = $_SESSION['ipadd'];
        echo $ipadd;
        $result = $telnet->Connect("$ipadd",'nib2p1','nib2p1');
        switch ($result) {
          case 0:
          case 1:
          case 2:
          case 3:
          case 4:
        }
    }   

}

（实际上你需要再次启动会话的唯一时间是你在Tel2.php上重定向用户。在这种情况下，它会被视为一个单独的文件。）

从for循环中多次运行php脚本

1 个答案: