Question

我想執行tel2.php對於我運行for循環得到的每個ip地址。我的tel2.php文件有一個session_start（）。因此，每次執行for循環腳本時，都會收到錯誤，表示會話已經開始。請指導我如何解決這個問題。謝謝。

<?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

確實像@yafater在評論從TEL2

刪除會話開始說。一次就夠了

更具體的我下面會說： 您提供鏈接的兩個文件，一個是包含在其他。所以基本上你必須把它看作只有一個文件。此外，如果不關閉中間內容，則無法開始兩次會話，因此只需要一個session_start()即可。

爲了幫助你理解的代碼看起來像這樣PHP已經包括了第一個文件裏面的tel2.php文件後：

<?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: 
     } 
    } 

} 

（你實際上需要重新啓動一個會話的唯一情況是，如果你在Tel2.php上重定向了用戶，在這種情況下，它將被視爲一個單獨的文件。）