Question

我对PHP代码有疑问。我在我的第一页中创建了会话，我可以打印会话（在同一页面中说$_SESSION['cno']但是当我试图在我的第二页中访问它时，它说cno（会话变量）是未定义的.. 为什么这样........

我通过谷歌搜索阅读教程和答案，但没有任何作用我已经在每个页面开始了会话........ 第1页

<?php 

include("connection.php"); 
session_start();

if(isset($_POST['proceed']))
{

    $user_name=$_POST['id2'];

    $name=$_POST['id3'];

    $spts  = $_POST['id10'];
    $carea = $_POST['id20'];
    $ctype = $_POST['id13'];
    $email = $_POST['email'];

    $paddress=$_POST['id4'] ;

    $cdat  = $_POST['id7'];
    $dis   = $_POST['id9'];
    $con   = $_POST['id11'];
    $cno   = $_POST['cntct'];

    $insert="INSERT INTO      cregister(u_name,name,addrs,cnt_no,e_mail,cs_type,dt_ocrnc,pls_ocrnc,dscrptn,suspts,cnvts) VALUES('$user_name','$name','$paddress','$cno','$email','$ctype','$cdat','$carea','$dis','$spts','$con')";

    mysql_query($insert);

    $lastid = mysql_insert_id();

    $_SESSION['cno']=$lastid;/////////////////////////// this is the created session

    header("location:printform.php"); 

}

?>

2页

<?php

    require "connection.php";
    session_start();
    $k = $_SESSION['cno'];//// this is the previously created session tried to re access
echo $k;


    $query = mysql_query("SELECT * FROM cregister WHERE cno  = '$k'");

$row =mysql_fetch_assoc($query);

$_SESSION['username'] = $row['u_name'];
$_SESSION['name']     = $row['name'];
$_SESSION['contact']  = $row['cnt_no'];
$_SESSION['email']    = $row['e_mail'];
$_SESSION['addrs']    = $row['addrs'];
$_SESSION['cstype']   = $row['cs_type'];
$_SESSION['dt']       = $row['dt_ocrnc'];
$_SESSION['pls']      = $row['pls_ocrnc'];
$_SESSION['dscrptn']  = $row['dscrptn'];
$_SESSION['suspts']   = $row['suspts'];
$_SESSION['cnvts']    = $row['cnvts'];

$file_to_delete = '../sdf.pdf';

    unlink($file_to_delete);
//header("location:../pdfmaker.php");





?>

Answer 1

您需要在第二页的开头开始会话（session_start()）。否则，您无法访问$_SESSION数组。

会话未定义错误

1 个答案: