Question

我正在使用PHP 7和HTML 5创建一个电子商务站点。输入登录详细信息时，admin.php只会刷新，并且不会重定向到index.php。

我已经尝试使用实际的cookie，尽管出于安全原因，我宁愿只使用会话cookie。

ADMIN LOGIN.php CODE
<?php
session_start();
if(isset($_SESSION["manager"])){
  header("location: index.php");
  exit();
}
?>
<?php
if (isset($_POST["username"])&&isset($_POST["password"])){
  $manager = preg_replace('#[^A-Za-z0-9]#i', '', $_POST["username"]);
  $password = preg_replace('#[^A-Za-z0-9]#i', '', $_POST["password"]);

  include "../storescripts/connect_to_mysql.php";
  //$sqlquery =
  $sql = mysqli_query($con, "SELECT id FROM admin WHERE username='$manager' AND password='$password' LIMIT 1");
  $existCount=mysqli_num_rows($sql);
  if($existCount == 1){
    while($row = mysqli_fetch_array($sql)){
      $id = $row["id"];
    }
    $_SESSION["id"] = $id;
    $_SESION["manager"] = $manager;
    $_SESSION["password"] = $password;
    header("location: index.php");
    exit();
  } else {
    // code...
    echo 'Invalid Log In Credentials<br><br>';
    echo'<a href="index.php">Click Here To Re-Enter Credentials</a>';
    exit();
  }
}
?>

INDEX.php CODE
<?php
session_start();
if (!isset($_SESSION["manager"])){
  header("location: admin_login.php");
  exit();
}

$managerID = preg_replace('#[^0-9]#i', '', $_SESSION["id"]);
$manager = preg_replace('#[^A-Za-z0-9]#i', '', $_SESSION["manager"]);
$password = preg_replace('#[^A-Za-z0-9]#i', '', $_SESSION["password"]);

include "../storescripts/connect_to_mysql.php";
$sql = mysqli_query($con, "SELECT * FROM admin WHERE id='$managerID' AND     username='$manager' AND password='$password' LIMIT 1");
$existCount = mysqli_num_rows($sql);
if ($existCount == 0){
  header("location: ../index.php");
  exit();
}
?>

我希望一旦设置了会话cookie，页面就会重定向到index.php，但是它不会这样做。

Answer 1

您必须更改您的重定向呼叫。我建议您将该逻辑封装在一个函数中。

function redirectTo($uri)
{
    header('Location: '.$uri); // Where to redirect. 
    http_response_code(301); // The response code to redirection.
    exit(); // End of script
}

然后在您的客户端代码中，重定向到index.php

redirectTo('/index.php'); // Note the removal of the dots. Your file must be relative to your document_root, not your filesystem.

完成。

PS：作为旁注，请勿将其视为人身攻击；这不是用PHP编码的正确方法。请查看：https://phptherightway.com/。现在，您必须使用正确的HTTP抽象。检查Zend Diactoros。：）

如何在PHP 7中从页面重定向到页面？

1 个答案: