我还有一个问题要问你们。 所以我是PHP的新手，当我遇到这些错误时，我正在尝试验证我的代码：
Notice: Undefined index: newUser[email] in C:'xampp'htdocs'assignment_2'registration.php on line 63
Notice: Undefined index: newUser[ID] in C:'xampp'htdocs'assignment_2'registration.php on line 66
Notice: Undefined index: newUser[password] in C:'xampp'htdocs'assignment_2'registration.php on line 70
问题是，由于我的表单名称，我不太确定如何处理它：（ 与往常一样，非常感谢任何帮助:)
这是我的注册.php代码
<html>
<h4>
<center>
New User Registration
</center>
</h4>
<body>
<?php
/*
* What this code does, is it takes the users registration information, and stores it in a file.
* After that what I hope to do is to retrive the same file when the user is on the login page and if
* the login matches whats in the file, then proceed to the invoice page.
*/
include "functions.inc";
// Define the datafile to hold the $users array
$datafile = "users.dat";
// See if the user has submitted something
if (array_key_exists('register', $_POST))
{
// Get the new user info
$the_user = $_POST['newUser'];
// Load the file of users and store it in $users
$users = arrayfile_to_array($datafile);
// Validate user name and password
if (user_exists($the_user['ID'], $users))
{
echo "User already exists!";
}
else
{
// If valid, save to the file of users
$users[] = $the_user;
array_to_arrayfile($users, $datafile);
}
}
else
{
if (!file_exists($datafile)) // Data file doesn't exist, so create it
{
$users = array();
array_to_arrayfile($users, $datafile);
}
}
?>
<?php
// my defined error values
$errEmail = "";
$errUser = "";
$errPass = "";
if(isset($_POST["register"])){
// Email validation
if(preg_match("/^[a-zA-Z]'w+('.'w+)*'@'w+('.[0-9a-zA-Z]+)*'.[a-zA-Z]{2,4}$/", $_POST["newUser[email]"]) === 0)
$errEmail = '<p class="errText">Email must comply with this mask: chars(.chars)@chars(.chars).chars(2-4)</p>';
// User must be digits and letters
if(preg_match("/^[0-9a-zA-Z_]{5,}$/", $_POST["newUser[ID]"]) === 0)
$errUser = '<p class="errText">User must be bigger that 5 chars and contain only digits, letters and underscore</p>';
// Password must be strong
//if(preg_match("/^.*(?=.{8,})(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z]).*$/", $_POST["pass"]) === 0)
if(preg_match("/^.*(?=.{8,})(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z]).*$/", $_POST["newUser[password]"]) === 0)
$errPass = '<span class="error">Password must be at least 8 characters and must contain at least one lower case letter, one upper case letter and one digit</span>';
}
?>
<form action = "<?= $_SERVER['PHP_SELF'] ?>" method= 'POST'>
<center>
<table width="300" border="0" align="center" cellpadding="0" cellspacing="1">
<tr>
<td>Username</td>
<td>:</td>
<td ><input name="newUser[ID]" type="text" size="16" value="">
<?php if(isset($errUser) and $errUser !='') echo $errUser; ?>
</td >
</tr>
<tr>
<td>Password</td>
<td>:</td>
<td><input name="newUser[password]" type="password" size="16" value="">
<?php if(isset($errPass) and $errPass !='') echo $errPass; ?>
</td >
</tr>
<tr>
<td>Email</td>
<td>:</td>
<td><input name="newUser[email]" type="text" size="50" value="">
<?php if(isset($errEmail) and $errEmail !='') echo $errEmail; ?>
</td >
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
</table>
<input type='submit' name='register' value='Register'>
</center>
</form>
</body>
</html>
$_POST['newUser']['email']
干杯
我认为你应该使用$_POST['newUser']['email'].
但仅适用于 PHP。在您的表格中，您可以不带引号。因为那是HTML而不是PHP。（我想！
我认为你不能直接通过HTML表单创建一个数组并将其作为POST-Variables提交。您必须重命名 HTML 表单中的变量。例如
<input name="newUser[password]" type="password" size="16" value="">
自
<input name="newUser_password" type="password" size="16" value="">
PHP 相应地：
$_POST["newUser_password"]