验证密码并确认PHP中的密码始终显示错误

Question

因此，我试图创建一个登录表单，现在我想验证密码和确认密码。 每当我提交注册按钮时，即使我输入了相同的密码，我使用的代码（也可以在下面找到）都向我显示“密码和确认密码不匹配”。 任何想法应该在我的代码中进行哪些更改以消除错误？

<?php
session_start();

 include('includes/config.php');
include('includes/db.php');

function isUnique($email){
$query="select * from users where email ='$email'";
global $db;

 $result = $db->query($query);

if($result->num_rows>0){
return false;
}
else return true;
}

if(isset($_POST['register'])) {
$_SESSION['name']=$_POST ['name'];
$_SESSION['email']=$_POST ['email'];
$_SESSION['password']=$_POST ['password'];
$_SESSION['confirm_password']=$_POST ['confirm_password'];

if(strlen($_POST['name'])<3){
header("Location:register.php?err=".urlencode ("The name must be at least 3   characters long"));
exit();
}

else if(strlen($_POST['password']) < 5 ){
  header("Location:register.php?err=".urlencode ("The password should be at  least 5 characters"));
exit();
} 
else if(strlen($_POST['confirm_password']) < 5 ){
  header("Location:register.php?err=".urlencode ("The Confirm password     should be at least 5 characters"));
exit();
} 
else if(!isUnique($_POST['email'])){
  header("location:register.php?err=".urlencode ("Email is already in use.   Please use another one"));
exit();
}
else if($_POST['[password'] != $_POST['confirm_password']) {
     header("Location:register.php?err=".urlencode ("The password and confirm           password do not match"));
    exit();
    }

    }
    ?>

这是我放置条件的另一部分，应在何时显示错误消息。

`<form action="register.php" method="post" style="margin-top:35px;">
  <h2> Register Here </h2>

  <?php
  if(isset ($_GET['err']))  { ?>

  <div class="alert alert-danger"><?php echo $_GET['err']; ?></div>
  <?php } 
  ?>`

Answer 1

您只是有一点错字：

代替$_POST['[password']使用$_POST['password']