<分区>
在尝试找到更改 md5 密码的方法后，我读到最好生成一个新密码并通过电子邮件发送。
我有以下代码，出于某种原因，它给了我这个错误
Notice: Undefined index: email_address on line 7
这是代码
<?php
session_start(); // Start Session
session_register("session");
// This is displayed if all the fields are not filled in
$empty_fields_message = "<p>Please go back and complete all the fields in the form.</p>Click <a class=\"two\" href=\"javascript:history.go(-1)\">here</a> to go back";
// Convert to simple variables
$email_address = $_POST['email_address'];
if (!isset($_POST['email_address'])) {
?>
<form method="post" action="<?php echo $_SERVER['REQUEST_URI']; ?>">
<label for="email_address">Email:</label>
<input type="text" title="Please enter your email address" name="email_address" size="30"/>
<input type="submit" value="Submit" class="submit-button"/>
</form>
<?php
}
elseif (empty($email_address)) {
echo $empty_fields_message;
}
else {
mysql_connect("localhost", "usern", "passw") or die(mysql_error());
mysql_select_db("mydb")
or die(mysql_error());
$email_address = mysql_real_escape_string($email_address);
$status = "OK";
$msg="";
//error_reporting(E_ERROR | E_PARSE | E_CORE_ERROR);
if (!stristr($email_address,"@") OR !stristr($email_address,".")) {
$msg="<p>Your email address is not in the correct format.</p>Click <a class=\"two\" href=\"javascript:history.go(-1)\">here</a> to go back";
$status= "NOTOK";}
echo "";
if($status=="OK"){ $query="SELECT email,username FROM users WHERE users.email = '$email_address'";
$st=mysql_query($query);
$recs=mysql_num_rows($st);
$row=mysql_fetch_object($st);
$em=$row->email_address;// email is stored to a variable
if ($recs == 0) {
echo "<p>Sorry your address is not there in our database. Please try again.</p>Click <a class=\"two\" href=\"javascript:history.go(-1)\">here</a> to go back";
exit;
}
function makeRandomPassword() {
$salt = "abchefghjkmnpqrstuvwxyz0123456789";
srand((double)microtime()*1000000);
$i = 0;
while ($i <= 7) {
$num = rand() % 33;
$tmp = substr($salt, $num, 1);
$pass = $pass . $tmp;
$i++;
}
return $pass;
}
$random_password = makeRandomPassword();
$db_password = md5($random_password);
$sql = mysql_query("UPDATE users SET password='$db_password'
WHERE email='$email_address'");
$subject = "Your New Password";
$message = "Hello, you have chosen to reset your password.
New Password: $random_password
http://www.yoursite.com/loginn
Once logged in you can change your password
Thanks!
Site admin
This is an automated response, please do not reply!";
mail($email_address, $subject, $message, "From: yoursite.com Webmaster<admin@jyoursite.com>\n
X-Mailer: PHP/" . phpversion());
echo "<p>Your new password has been send! Please check your email!";
}
else {echo "$msg";}
}
?>
它引用的行是
$email_address = $_POST['email_address'];
我不确定为什么会这样，我是不是看错了什么？