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;
  }
 }
?>

<?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>

答

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 />";
}

答

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'];

如何在2个php文件之间传递变量

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