如何在2个php文件之间传递变量

如何在2个php文件之间传递变量

问题描述:

I have two php files to make authentication to active directory users, i want to get the attribute url from it and pass this variable $data from authenticate.php to login.php if the function returned true to be in the location of header("Location: *URL*");,how can this be done?

authenticate.php:

<?php
  // Initialize session
  session_start();

  function authenticate($user, $password) {
  if(empty($user) || empty($password)) return false;

  // Active Directory server
  $ldap_host = "CRAMSDCR01V.cloud4rain.local";

  // connect to active directory
  $ldap = ldap_connect($ldap_host);

  $ldap_dn="OU=by-style,DC=cloud4rain,DC=local";

  // verify user and password
  if($bind = @ldap_bind($ldap, $user, $password)) 
  {
    $result = ldap_search($ldap,$ldap_dn, "(cn=*)") or die ("Error in search query: ".ldap_error($ldap));
    $data = ldap_get_entries($ldap, $result);
    echo $data["url"];
    return true;    
  } 
  else 
  {
    // invalid name or password
    return false;
  }
 }
?>

login.php:

<?php
include("authenticate.php");

// check to see if user is logging out
if(isset($_GET['out'])) {
// destroy session
session_unset();
$_SESSION = array();
unset($_SESSION['user'],$_SESSION['access']);
session_destroy();
}

// check to see if login form has been submitted
if(isset($_POST['btn-login'])){
// run information through authenticator
if(authenticate($_POST['userLogin'],$_POST['userPassword']))
{
  // authentication passed
  header("Location: authenticate.php?$data");
  die();
 } else {
  // authentication failed
  $error = "Login failed: Incorrect user name, password, or rights<br /-->";
}
}

// output logout success
if(isset($_GET['out'])) echo "Logout successful";
?>

我有两个php文件对活动目录用户进行身份验证,我想获取属性 url 来自它并将此变量 $ data code>从 authenticate.php code>传递给 login.php code>,如果函数返回true则位于该位置 header(“Location:* URL *”); code>,如何做到这一点? p>

authenticate.php: p> &lt;?php //初始化会话 session_start(); 函数验证($ user,$ password){ if(empty($ user)|| empty($ password) ))返回false; // Active Directory服务器 $ ldap_host =“CRAMSDCR01V.cloud4rain.local”; //连接到活动目录 $ ldap = ldap_connect($ ldap_host); $ ldap_dn =“OU = by-style,DC = cloud4rain,DC = local”; //验证用户和密码 if($ bind = @ldap_bind($ ldap,$ user,$ password) ) { $ result = ldap_search($ ldap,$ ldap_dn,“(cn = *)”)或die(“搜索查询中的错误:”。oldap_error($ ldap)); $ data = ldap_get_entries($ ldap,$ result); echo $ data [“url”]; 返回true; } 其他 { //名称或密码无效 返回false; } } ?&gt; code> pre>

login.php: p>

 &lt;?php 
include(“authenticate.php”); 
 
 //检查用户是否正在退出
if(isset)  ($ _GET ['out'])){
 // destroy session 
session_unset(); 
 $ _SESSION = array(); 
unset($ _ SESSION ['user'],$ _ SESSION ['access'])  ; 
session_destroy(); 
} 
 
 //检查登录表单是否已提交
if(isset($ _ POST ['btn-login'])){
 //通过身份验证器运行信息\  nif(authenticate($ _ POST ['userLogin'],$ _ POST ['userPassword']))
 {
 //身份验证传递
标题(“位置:authenticate.php?$ data”); 
 die(  ); 
} else {
 //身份验证失败
 $ error =“登录失败:用户名,密码或权限不正确&lt; br /  - &gt;”; 
} 
} 
 
 / n  / output logout success 
if(isset($ _ GET ['out']))echo“Logout successful”; 
?&gt; 
  code>  pre> 
  div>

login.php

<?php
include("authenticate.php");

That essentially acts like pasting the contents of authenticate.php inside login.php so although it's technically 2 files, it acts as if it's just the one - however $data is defined within the authenticate() function and so is only scoped within that function.


In authenticate.php - return the data from the function

// verify user and password
if($bind = @ldap_bind($ldap, $user, $password)) 
{
    $result = ldap_search($ldap,$ldap_dn, "(cn=*)") or die ("Error in search query: ".ldap_error($ldap));
    $data = ldap_get_entries($ldap, $result);
    // echo $data["url"]; // I assume this is just for debugging...

    // return $data from the function which should be "truthy"
    return $data;
} 
else 
{
    // invalid name or password
    return false;
}


In login.php - evaluate the return from the authenticate() function - since PHP is loosely typed any (non-empty) string returned by the function can be evaluated as being "truthy" - the only other returns you have from the function are false so...

// run information through authenticator
if($authData = authenticate($_POST['userLogin'],$_POST['userPassword']))
{
  // authentication passed
  // renamed the variable $authData just for clarity
  header("Location: authenticate.php?$authData"); 
  die();
 } 

 else {
  // authentication failed
  $error = "Login failed: Incorrect user name, password, or rights<br />";
}

Not sure why you have $_SESSION = array(); in login.php but if you want to pass $data from one php to another then just set it in session as

$_SESSION['data'] = $data;

ang to get it in the other file use

$data = $_SESSION['data'];