我只是想让用户无需在上面输入任何内容即可更改自己的电子邮件。目前它的工作原理，但它也说'当前密码不正确/错误＆＃39;。我可以忽略＆＃39;当前密码不正确/错误＆＃39;如果我只是想要更改电子邮件？
谢谢！
图片：http://puu.sh/cmcKM/aef56cdaf4.png
我已尝试过使用此功能，但没有成功仍然给了我相同的信息
if (!empty($_POST['repeatnewpassword']) && !empty($_POST['newpassword'])) {
if ($newpassword==$repeatnewpassword)
{
$querychange = mysql_query("UPDATE login SET password='$newpassword' WHERE username='$username'");
echo "<div class='successmate'><br><br><br><br><hr>Password has been changed!</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
}
else {echo "<div class='results'>new password(s) dont match</div><div class='successmate'><br><br><h2><p><a href='changepassword.php'>try again?</a></p></h2></div>";}
}
我的代码：
<title>Honda</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<link href='http://fonts.googleapis.com/css?family=Julius+Sans+One' rel='stylesheet' type='text/css'>
<link href="../css/style.css" rel="stylesheet" type="text/css" media="all" />
<?php
session_start();
$username = $_SESSION['sess_user'];
echo '<div class="search1"><h2>'.$username.'</h2><div class="search12"><h2><a href="index2.php">Home</a></h2></p></div></div>';
if (isset($_SESSION['sess_user']))
{
//user is logged in
if (isset($_POST['submit']))
{
//start changing password
//check fields
$oldpassword = md5($_POST['oldpassword']);
$newpassword = md5($_POST['newpassword']);
$email = $_POST['email'];
$repeatnewpassword = md5($_POST['repeatnewpassword']);
//check password against db
include('../includes/config.php');
$queryget = mysql_query("SELECT password FROM login WHERE username='$username'") or die ("change password failed");
$row = mysql_fetch_assoc($queryget);
$oldpassworddb = $row['password'];
//check passwords
if ($oldpassword==$oldpassworddb && !empty($_POST['oldpassword']))
{
if (isset($_POST['repeatnewpassword']) AND isset($_POST['newpassword']) AND $_POST['newpassword'] != '') {
if ($newpassword==$repeatnewpassword)
{
$querychange = mysql_query("UPDATE login SET password='$newpassword' WHERE username='$username'");
echo "<div class='successmate'><br><br><br><br><hr>Password has been changed!</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
}
else {echo "<div class='results'>new password(s) dont match</div><div class='successmate'><br><br><h2><p><a href='changepassword.php'>try again?</a></p></h2></div>";}
}
}
else {echo "<div class='results'>current password doesnt match</div><div class='successmate'><h2><p><a href='changepassword.php'><br><br>Try again?</a></p></h2></div>";}
if (isset($_POST['email']) AND $_POST['email'] != '') {
$querychange = mysql_query("UPDATE login SET email='$email' WHERE username='$username'");
echo "<div class='successmate'><br><br><br><br><hr>Your email has been changed</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
}}
else
{
echo"
<form class='search1' action='changepassword.php' method='POST'>
<label>Current Password:*</label> <input type='password' id='password' name='oldpassword'><p>
<label>New Password:*</label> <input type='password' id='password' name='newpassword'><p>
<label>Repeat New Password:*</label> <input type='password' name='repeatnewpassword'><p>
<label>Email:</label> <input type='email' name='email'><p>
<input type='submit' name='submit' class='submit' value='submit'><br><br><br>
<h2><p><a href='index2.php'>Back</a></p></h2>
</form>
";
}}
else
die ("You must be logged in to change your password");
?>
<img src="../images/main.jpg">
编辑 - 弗雷德：
<?php
session_start();
$username = $_SESSION['sess_user'];
echo '<div class="search1"><h2>'.$username.'</h2><div class="search12"><h2><a href="index2.php">Home</a></h2></p></div></div>';
if (isset($_SESSION['sess_user']))
{
//user is logged in
if (isset($_POST['submit']))
{
//start changing password
//check fields
$oldpassword = md5($_POST['oldpassword']);
$newpassword = md5($_POST['newpassword']);
$email = $_POST['email'];
$repeatnewpassword = md5($_POST['repeatnewpassword']);
//check password against db
include('../includes/config.php');
$queryget = mysql_query("SELECT password FROM login WHERE username='$username'") or die ("change password failed");
$row = mysql_fetch_assoc($queryget);
$oldpassworddb = $row['password'];
//check passwords
if($_POST['newpassword']){
if ($oldpassword==$oldpassworddb)
{
if (isset($_POST['repeatnewpassword']) AND isset($_POST['newpassword']) AND $_POST['newpassword'] != '') {
if ($newpassword==$repeatnewpassword)
{
$querychange = mysql_query("UPDATE login SET password='$newpassword' WHERE username='$username'");
echo "<div class='successmate'><br><br><br><br><hr>Password has been changed!</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
}
else {echo "<div class='results'>new password(s) dont match</div><div class='successmate'><br><br><h2><p><a href='changepassword.php'>try again?</a></p></h2></div>";}
}
} else {echo "<div class='results'>current password doesnt match</div><div class='successmate'><h2><p><a href='changepassword.php'><br><br>Try again?</a></p></h2></div>";}
}
if (isset($_POST['email']) AND $_POST['email'] != '') {
$querychange = mysql_query("UPDATE login SET email='$email' WHERE username='$username'");
echo "<div class='successmate'><br><br><br><br><hr>Your email has been changed</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
}
}
}
else {echo "<div class='results'>current password doesnt match</div><div class='successmate'><h2><p><a href='changepassword.php'><br><br>Try again?</a></p></h2></div>";}
if (isset($_POST['email']) AND $_POST['email'] != '') {
$querychange = mysql_query("UPDATE login SET email='$email' WHERE username='$username'");
echo "<div class='successmate'><br><br><br><br><hr>Your email has been changed</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
}
else
{
echo"
<form class='search1' action='changepassword.php' method='POST'>
<label>Current Password:*</label> <input type='password' id='password' name='oldpassword' ><p>
<label>New Password:*</label> <input type='password' id='password' name='newpassword'><p>
<label>Repeat New Password:*</label> <input type='password' name='repeatnewpassword'><p>
<label>Email:</label> <input type='email' name='email'><p>
<input type='submit' name='submit' class='submit' value='submit'><br><br><br>
<h2><p><a href='index2.php'>Back</a></p></h2>
</form>
";
}
else
die ("You must be logged in to change your password");
?>
答案 0 :(得分：1)
确保您检查是否有人输入了密码，如果是，您更改了密码，否则您只需更改电子邮件
像这样：
if (isset($_POST['submit']))
{
//start changing password
//check fields
$oldpassword = md5($_POST['oldpassword']);
$newpassword = md5($_POST['newpassword']);
$email = $_POST['email'];
$repeatnewpassword = md5($_POST['repeatnewpassword']);
//check password against db
include('../includes/config.php');
$queryget = mysql_query("SELECT password FROM login WHERE username='$username'") or die ("change password failed");
$row = mysql_fetch_assoc($queryget);
$oldpassworddb = $row['password'];
//check passwords
if($_POST['newpassword']){
if ($oldpassword==$oldpassworddb)
{
if (isset($_POST['repeatnewpassword']) AND isset($_POST['newpassword']) AND $_POST['newpassword'] != '') {
if ($newpassword==$repeatnewpassword)
{
$querychange = mysql_query("UPDATE login SET password='$newpassword' WHERE username='$username'");
echo "<div class='successmate'><br><br><br><br><hr>Password has been changed!</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
}
else {echo "<div class='results'>new password(s) dont match</div><div class='successmate'><br><br><h2><p><a href='changepassword.php'>try again?</a></p></h2></div>";}
}
} else {echo "<div class='results'>current password doesnt match</div><div class='successmate'><h2><p><a href='changepassword.php'><br><br>Try again?</a></p></h2></div>";}
}
if (isset($_POST['email']) AND $_POST['email'] != '') {
$querychange = mysql_query("UPDATE login SET email='$email' WHERE username='$username'");
echo "<div class='successmate'><br><br><br><br><hr>Your email has been changed</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
}
}
答案 1 :(得分：0)
Ariana你的代码有点令人困惑，我认为你的代码中有一点丢失了你的其他条件。我重写了它，如果有效的话就试试。
**更新了***
你真的不应该使用它，因为它不安全 - 尝试使用mysqli_而不是mysql_并了解mysql_real_escape_string。无论如何，我已经用我的评论更新了代码，它应该可以工作。
<?php
session_start();
$username = $_SESSION['sess_user'];
echo '<div class="search1"><h2>'.$username.'</h2><div class="search12"><h2><a href="index2.php">Home</a></h2></p></div></div>';
if (isset($username)){
//user is logged in
if (isset($_POST['submit'])){
#1 Check if fields are not empty
if( !isset($_POST['oldpassword']) || !isset($_POST['newpassword']) ){
echo "Fields empty";
exit();
}
$oldpassword = md5($_POST['oldpassword']);
$newpassword = md5($_POST['newpassword']);
$repeatnewpassword = md5($_POST['repeatnewpassword']);
$email = $_POST['email'];
//check password against db
include('../includes/config.php');
$queryget = mysql_query("SELECT password FROM login WHERE username='$username'") or die ("change password failed");
$row = mysql_fetch_assoc($queryget);
$oldpassworddb = $row['password'];
#2 Check the old password
if($oldpassword==$oldpassworddb){
# they match - check if nwe and repeat pass match
if($newpassword == $repeatnewpassword){
mysql_query("UPDATE login SET password='$newpassword' WHERE username='$username' ");
echo "<div class='successmate'><br><br><br><br><hr>Password has been changed!</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
# check if email isn't empty so you can update
if( !empty($_POST['email']) ){
mysql_query("UPDATE login SET email='$email' WHERE username='$username'");
echo "<div class='successmate'><br><br><br><br><hr>Your email has been changed</hr></div><div class='successmate'><br><hr><br><h2><p><a href='index2.php'><br><br></a></p></h2></div>";
}
}else{
echo "<div class='results'>Passwords don't match !</div><div class='successmate'><br><br><h2><p><a href='changepassword.php'>try again?</a></p></h2></div>";
}
}else{
# they don't match
echo "<div class='results'>Old password wrong !</div><div class='successmate'><br><br><h2><p><a href='changepassword.php'>try again?</a></p></h2></div>";
}
} // end if form submitted
echo "
<form class='search1' action='changepassword.php' method='POST'>
<label>Current Password:*</label> <input type='password' id='password' name='oldpassword'><p>
<label>New Password:*</label> <input type='password' id='password' name='newpassword'><p>
<label>Repeat New Password:*</label> <input type='password' name='repeatnewpassword'><p>
<label>Email:</label> <input type='email' name='email'><p>
<input type='submit' name='submit' class='submit' value='submit'><br><br><br>
<h2><p><a href='index2.php'>Back</a></p></h2>
</form>
";
}else{
die ("You must be logged in to change your password");
}
?>
<img src="../images/main.jpg">