Say goodbye to AJAX and implement non-refresh submission forms-CSS Tutorial-php.cn

Say goodbye to AJAX and implement non-refresh submission forms

PHPz

Release： 2019-01-04 14:05:04

Original

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usually we use ajax to submit forms without refreshing. some time ago, i followed my boss and learned about another method of submitting a form without refreshing. now i’ve sorted it out and shared it with everyone.

the first type:

(html page)

the code is as follows:

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>无刷新提交表单</title>
    <style type="text/css">
        ul{ list-style-type:none;}
    </style>
</head>
<body>
    <iframe name="formsubmit" style="display:none;">
    </iframe>
    <!-- 将form表单提交的窗口指向隐藏的ifrmae,并通过ifrmae提交数据。 -->
    <form action="form.php" method="post" name="formphp" target="formsubmit">
       <ul>
            <li>
                <label for="uname">用户名：</label>
                <input type="text" name="uname" id="uname" />
            </li>
            <li>
                <label for="pwd">密  码：</label>
                <input type="password" name="pwd" id="pwd" />
            </li>
            <li>
                <input type="submit" value="登录" />
            </li>
       </ul>
    </form>
</body>
</html>

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the second type:

(php page)

the code is as follows:

<?php
  //非空验证
  if(empty($_POST['uname']) || empty($_POST['pwd']))
  {
    echo '<script type="text/javascript">alert("用户名或密码为空!");</script>';
    exit;
  }
  //验证密码
  if($_POST['uname'] != 'jack' || $_POST['pwd'] != '123456')
  {
    echo '<script type="text/javascript">alert("用户名或密码不正确!");</script>';
    exit;
  } else {
    echo '<script type="text/javascript">alert("登录成功!");</script>';
    exit;
  }

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