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这个为什么href后面的等号没有变色?是什么问题啊?求指教~新手


回复讨论(解决方案)

为什么要变色?echo里面只是字符串

这个为什么href后面的等号没有变色?是什么问题啊?求指教~新手 你这样写是正确的啊。

echo "<script>alert('登陆成功');window.location.href='index.php' ;</script>";

echo "<script>alert('登陆失败');window.location.href='login.php' ;</script>";

这个分号在里面的吧。

引用 楼主 u010201059 的回复:这个为什么href后面的等号没有变色?是什么问题啊?求指教~新手你这样写是正确的啊。
那为什么不管我输入的用户名与密码是否正确它都跳转到空白页呢?
这个是检查用户名和密码的程序,帮忙看看哪里出错了啊?

那个空白页?你的文件不存在?404了?

是不是$_POST[""]没有吧,把你登陆界面的代码发出来看下

引用 2 楼 u010209443 的回复:引用 楼主 u010201059 的回复:这个为什么href后面的等号没有变色?是什么问题啊?求指教~新手你这样写是正确的啊。
那为什么不管我输入的用户名与密码是否正确它都跳转到空白页呢?
这个是检查用户名和密码的程序,帮忙看看哪里出错了啊? 首先你判断的是表单的输入框是否存在,这样的话只要你输入东西就会跳到index.php页面;第二,你应该判断$_POST['username'],就是输入的用户名是否在数据库中存在,你可以先遍历出数据库中的用户名,然后判断$_POST['username']是存在于其中;第三,你的index.php存在吗?或者是你的路径写错了。 

是不是$_POST[""]没有吧,把你登陆界面的代码发出来看下

我把那个判断表单是否上传那一句if(isset。。。删掉了又试了试(因为我想着登陆界面直接作用到判断文件,所以这个判断语句应该可以不要的吧),用了正确的用户名和密码但是登录失败。。。


引用 4 楼 u010201059 的回复:引用 2 楼 u010209443 的回复:引用 楼主 u010201059 的回复:这个为什么href后面的等号没有变色?是什么问题啊?求指教~新手你这样写是正确的啊。
那为什么不管我输入的用户名与密码是否正确它都跳转到空白页呢?
这个是检查用户名和密码的程序,帮忙看看哪里出错了啊?首先你判断的是表单的输入框是否存在,这样……[/没有吧,我哪句是判断表单输入框的存在?没有这句吧,index.php文件是对的

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