如标题所述,我遇到了 SQL 注入错误:
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1' at line 1
我该如何解决?下面提供的是我的php代码和html代码
PHP:
if($_POST['submit']=='Change')
{
$err = array();
if(!$_POST['password1'] || !$_POST['passwordnew1'])
$err[] = 'All the fields must be filled in!';
if(!count($err))
{
$_POST['password1'] = mysql_real_escape_string($_POST['password1']);
$_POST['passwordnew1'] = mysql_real_escape_string($_POST['passwordnew1']);
$row = mysql_fetch_assoc(mysql_query("SELECT id,username FROM members WHERE username='{$_SESSION['username']}' AND pass='".md5($_POST['password1'])."'"));
if($row['username'])
{
$querynewpass = mysql_query("UPDATE members SET pass='".md5($_POST['passwordnew1'])."' WHERE username='{$_SESSION['username']}'");
$result = mysql_query($querynewpass) or die(mysql_error());
}
else $err[]='Wrong Password To Start With!';
}
if($err)
$_SESSION['msg']['passwordchange-err'] = implode('<br />',$err);
header("Location: members.php?id=" . $_SESSION['username']);
exit;
}
HTML:
<form action="" method="post">
<?php
if($_SESSION['msg']['passwordchange-err'])
{
echo '<div class="err">'.$_SESSION['msg']['passwordchange-err'].'</div>';
unset($_SESSION['msg']['passwordchange-err']);
}
if($_SESSION['msg']['passwordchange-success'])
{
echo '<div class="success">'.$_SESSION['msg']['passwordchange-success'].'</div>';
unset($_SESSION['msg']['passwordchange-success']);
}
?>
<label class="grey" for="password1">Current Password:</label>
<input class="field" type="password" name="password1" id="password1" value="" size="23" />
<label class="grey" for="password">New Password:</label>
<input class="field" type="password" name="passwordnew1" id="passwordnew1" size="23" />
<input type="submit" name="submit" value="Change" class="bt_register" style="margin-left: 382px;" />
</form>
我可以在用户可以更改/更新密码的地方使用它,但是,当他们单击表单上的更改按钮时,他们会被定向到我在上面发布的错误消息,如果他们单击刷新按钮,那么只有他们被重定向回他们的个人资料,并且已经进行了更改。所以我手头的主要问题是,如何在没有 mysql 错误消息的情况下让它完全工作?任何帮助将非常感激!