前端php测试案例

<?php
    session_start();
    // $_SESSION[‘login‘]=11;
    echo $_SESSION[‘login‘];
?>

<?php
    // var_dump($_GET);
    echo ‘<br/>‘;
    $username=$_GET[‘username‘];
    $password=$_GET[‘password‘];
    $link=mysqli_connect(‘localhost‘,‘root‘,‘cruces‘,‘abate‘);
    $sql="select * from users where username=‘$username‘ and password=‘$password‘";
    $result=mysqli_query($link,$sql);
    // print_r($result);
    echo ‘<br/>‘;
    $data=mysqli_fetch_all($result,MYSQLI_ASSOC);
    echo count($data);
    echo ‘<br/>‘;
    if(count($data)){
        header(‘location: ./home.html‘);
      }else{
        echo ‘login failed‘;
    }
?>    

<?php
  $username=$_POST[‘username‘];
  $password=$_POST[‘password‘];
  $link=mysqli_connect(‘localhost‘,‘root‘,‘cruces‘,‘abate‘);
  $sql="select * from `users` where username=‘$username‘ and password=‘$password‘";
  $result=mysqli_query($link,$sql);
  $data=mysqli_fetch_all($result,MYSQLI_ASSOC);
  if(count($data)){
    session_start();
    $_SESSION[‘login‘]=11;
    $_SESSION[‘username‘]=$data[0][‘username‘];
    header(‘location: ./index.php‘);
    var_dump($data);
  }else{
    echo ‘failed !‘;
  }