PHP开发小型论坛教程之登录-1

创建 login.html 文件

我们的登录页面使用了<table>表格进行布局

加上一些简单的CSS样式，最终的效果如下图

我们给登录页面做了简单的JS判断，如果用户名和密码没有填写登录，会给出相关的提示信息

完整代码如下

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>用户登录</title>
</head>
<body>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登陆界面</title>
    <script type="text/javascript">
        function foo(){
            if(myform.username.value=="")
            {
                alert("请输入用户名");
                myform.username.focus();
                return false;
            }
            if (myform.password.value=="")
            {
                alert("请输入密码");
                myform.password.focus();
                return false;
            }
        }
    </script>
    <style type="text/css">
        table{
            height: 300px;
        }
        input{
            width: 190px;
            height: 25px;
        }
        .title{
            background-color:#B10707 ;
            color: white;
            border: none;
        }
        .but{
            width: 140px;
            height: 43px;
        }
        .spa{
            margin-left: 10px;
        }
    </style>
</head>
<body>
<form action="login.php"  method="post" onsubmit="return foo();" name="myform" >
    <table width="400px" border="1" cellpadding="12" cellspacing="1" align="center">
        <tr>
            <td colspan="2" class="title">会员登录<span class="spa">[<a style="color: white"  href="index.php">返回首页]</a></span></td>
        </tr>
        <tr>
            <td width="110px">会员ID</td>
            <td><input type="text" name="username"></td>
        </tr>
        <tr>
            <td width="110px">会员密码</td>
            <td><input type="password" name="password"></td>
        </tr>
        <tr>
            <td colspan="2" align="center">
                <button class="but" style="text-align: center">立即登录</button>
            </td>
        </tr>
    </table>
</form>
</body>
</html>

将填写的信息提交到login.php页面处理

继续学习

新建文件

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>用户登录</title> </head> <body> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>登陆界面</title> <script type="text/javascript"> function foo(){ if(myform.username.value=="") { alert("请输入用户名"); myform.username.focus(); return false; } if (myform.password.value=="") { alert("请输入密码"); myform.password.focus(); return false; } } </script> <style type="text/css"> table{ height: 300px; } input{ width: 190px; height: 25px; } .title{ background-color:#B10707 ; color: white; border: none; } .but{ width: 140px; height: 43px; } .spa{ margin-left: 10px; } </style> </head> <body> <form action="login.php" method="post" onsubmit="return foo();" name="myform" > <table width="400px" border="1" cellpadding="12" cellspacing="1" align="center"> <tr> <td colspan="2" class="title">会员登录<span class="spa">[<a style="color: white" href="index.php">返回首页]</a></span></td> </tr> <tr> <td width="110px">会员ID</td> <td><input type="text" name="username"></td> </tr> <tr> <td width="110px">会员密码</td> <td><input type="password" name="password"></td> </tr> <tr> <td colspan="2" align="center"> <button class="but" style="text-align: center">立即登录</button> </td> </tr> </table> </form> </body> </html>

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