我正在关注在线教程。问题是我得到了
语法错误意外T_ELSE PHP第二个空白区域。
我曾尝试使用notepad ++对PHP空白字体进行排序，但它并没有消失。目前正在使用PHP 8.错误可能来自何处？
这是我的account_settings.php页面：
<?php
include( "header inc.php" );
if (!$user) {
}
else
{
die ("You must be logged in to view this page!");
}
?>
<?php
$senddata = @$_POST['senddata'];
//Password variables
$old_password = mysqli_real_escape_string($mysqli,@$_POST['oldpassword']);
$new_password = mysqli_real_escape_string($mysqli,@$_POST['newpassword']);
$repeat_password = mysqli_real_escape_string($mysqli,@$_POST['newpassword2']);
if ($senddata)
//If the form is submitted..
$password_query = $mysqli->query("SELECT * FROM users WHERE username='$user'");
while ($row = mysqli_fetch_assoc($password_query)) {
$db_password = $row['password'];
//md5 the old password before we check if it matches
$old_password_md5 = md5($old_password);
//Check whether old password equals $db_password
if ($old_password_md5 == $db_password) {
//Continue Changing the users password ...
//Check whether the 2 new passwords match
if ($new_password == $repeat_password) {
//md5 the new password before we add it to the database
$new_password_md5 = md5($new_password);
//Great! Update the users passwords!
$password_update_query = $mysqli->query("UPDATE users SET password='$new_password_md5' WHERE username='$user'");
echo "Success! Your password has been updated!";
}
}
else
{
echo "Your two new passwords don't match!";
}
}
else
{
echo "The old password is incorrect!";
}
}
else
{
echo "";
}
?>
<h2>Edit your Account Settings below</h2>
<hr />
<form action="account_settings.php" accept-charset="utf-8" method="post">
<p>CHANGE YOUR PASSWORD:</p> <br />
Your Old Password: <input type="text" name="oldpassword" id="oldpassword" size="40"><br />
Your New Password: <input type="text" name="newpassword" id="newpassword" size="40"><br />
Repeat Password : <input type="text" name="newpassword2" id="newpassword2" size="40"><br />
<hr />
<p>UPDATE YOUR PROFILE INFO:</p> <br />
First Name: <input type="text" name="fname" id="fname" size="40" value="<? echo $db_first_name; ?>"><br />
Last Name: <input type="text" name="lname" id="lname" size="40" value="<? echo $db_last_name; ?>"><br />
About You: <textarea name="about you" id="about you" rows="7" cols="40"></textarea>
<hr />
<input type="submit" name="senddata" id="senddata" value="Update Information">
</form>
答案 0 :(得分：0)
if ($senddata){
$password_query = $mysqli->query("SELECT * FROM users WHERE username='$user'");
while ($row = mysqli_fetch_assoc($password_query)) {
}
else{
}
最后，下面提到的其他没有IF
}
else
{
echo "";
}
修正了它，试试这个：
<?php
include( "header inc.php" );
if (!$user) {
}
else
{
die ("You must be logged in to view this page!");
}
?>
<?php
$senddata = @$_POST['senddata'];
//Password variables
$old_password = mysqli_real_escape_string($mysqli,@$_POST['oldpassword']);
$new_password = mysqli_real_escape_string($mysqli,@$_POST['newpassword']);
$repeat_password = mysqli_real_escape_string($mysqli,@$_POST['newpassword2']);
if ($senddata) {
//If the form is submitted..
$password_query = $mysqli->query("SELECT * FROM users WHERE username='$user'");
while ($row = mysqli_fetch_assoc($password_query)) {
$db_password = $row['password'];
//md5 the old password before we check if it matches
$old_password_md5 = md5($old_password);
//Check whether old password equals $db_password
if ($old_password_md5 == $db_password) {
//Continue Changing the users password ...
//Check whether the 2 new passwords match
if ($new_password == $repeat_password) {
//md5 the new password before we add it to the database
$new_password_md5 = md5($new_password);
//Great! Update the users passwords!
$password_update_query = $mysqli->query("UPDATE users SET password='$new_password_md5' WHERE username='$user'");
echo "Success! Your password has been updated!";
}
}
else
{
echo "Your two new passwords don't match!";
}
}
}
else
{
echo "The old password is incorrect!";
}
?>
<h2>Edit your Account Settings below</h2>
<hr />
<form action="account_settings.php" accept-charset="utf-8" method="post">
<p>CHANGE YOUR PASSWORD:</p> <br />
Your Old Password: <input type="text" name="oldpassword" id="oldpassword" size="40"><br />
Your New Password: <input type="text" name="newpassword" id="newpassword" size="40"><br />
Repeat Password : <input type="text" name="newpassword2" id="newpassword2" size="40"><br />
<hr />
<p>UPDATE YOUR PROFILE INFO:</p> <br />
First Name: <input type="text" name="fname" id="fname" size="40" value="<? echo $db_first_name; ?>"><br />
Last Name: <input type="text" name="lname" id="lname" size="40" value="<? echo $db_last_name; ?>"><br />
About You: <textarea name="about you" id="about you" rows="7" cols="40"></textarea>
<hr />
<input type="submit" name="senddata" id="senddata" value="Update Information">
</form>
答案 1 :(得分：-1)
语法错误在else条件下。
尝试
<?php
include ("header inc.php");
if (!$user)
{
}
else
{
die ("You must be logged in to view this page!");
}
//Password variables
$old_password = mysqli_real_escape_string($mysqli,@$_POST['oldpassword']);
$new_password = mysqli_real_escape_string($mysqli,@$_POST['newpassword']);
$repeat_password = mysqli_real_escape_string($mysqli,@$_POST['newpassword2']);
if(isset($_POST['senddata']))
{
//If the form is submitted..
$password_query = $mysqli->query("SELECT * FROM users WHERE username='$user'");
while ($row = mysqli_fetch_assoc($password_query))
{
$db_password = $row['password'];
//md5 the old password before we check if it matches
$old_password_md5 = md5($old_password);
//Check whether old password equals $db_password
if ($old_password_md5 == $db_password)
{
//Continue Changing the users password ...
//Check whether the 2 new passwords match
if ($new_password == $repeat_password)
{
//md5 the new password before we add it to the database
$new_password_md5 = md5($new_password);
//Great! Update the users passwords!
$password_update_query = $mysqli->query("UPDATE users SET password='$new_password_md5' WHERE username='$user'");
echo "Success! Your password has been updated!";
}
else
{
echo "Your two new passwords don't match!";
}
}
else
{
echo "The old password is incorrect!";
}
}
}
?>
<h2>Edit your Account Settings below</h2>
<hr />
<form action="account_settings.php" accept-charset="utf-8" method="post">
<p>CHANGE YOUR PASSWORD:</p> <br />
Your Old Password: <input type="text" name="oldpassword" id="oldpassword" size="40"><br />
Your New Password: <input type="text" name="newpassword" id="newpassword" size="40"><br />
Repeat Password : <input type="text" name="newpassword2" id="newpassword2" size="40"><br />
<hr />
<p>UPDATE YOUR PROFILE INFO:</p> <br />
First Name: <input type="text" name="fname" id="fname" size="40" value="<? echo $db_first_name; ?>"><br />
Last Name: <input type="text" name="lname" id="lname" size="40" value="<? echo $db_last_name; ?>"><br />
About You: <textarea name="about you" id="about you" rows="7" cols="40"></textarea>
<hr />
<input type="submit" name="senddata" id="senddata" value="Update Information">
</form>