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PHP黏性表单的制作
hanyufeng的博客
Original
685 people have browsed it

运行效果：

提交表单后，表单数据仍然保留。

PHP黏性表单.gif

要点：

将$_POST的值赋给表单元素的value等属性。

示例源码：

<?php
//设置初始值/默认值
//变量可以直接使用，不用另外声明初始化
isset($_POST['username'])?$name= $_POST['username']:$name = '';
isset($_POST['email'])?$email= $_POST['email']:$email = '';
isset($_POST['gender'])?$gender= $_POST['gender']:$gender = 'male';
isset($_POST['age'])?$age= $_POST['age']:$age = '1';
isset($_POST['memo'])?$memo= $_POST['memo']:$memo = '';
?>
<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" href="http://demo.h-ui.net/H-ui.admin/3.1/static/h-ui/css/H-ui.min.css">
    <title>php黏性表单</title>
    <style>
        body{
            font-size: 1.5em;
 }
    </style>
</head>
<body>
<div class="containBox">
    <div class="containBox-bg"></div>
    <div class="wap-container">
        <div class="container ui-sortable">
            <div class="panel-body" style="display: block;">
                <form action="" method="post" class="form form-horizontal responsive">
                    <div class="panel panel-default mt-20"  style="width:800px;margin:0 auto">
                        <div class="panel-header selected">注册</div>
                        <div class="row cl">
                            <label class="form-label col-sm-2 col-md-2 col-md-offset-2">用户名:</label>
                            <div class="formControls col-sm-5 col-md-5">
                                <input type="text" name="username" class="input-text" value="<?php echo $name ?>">
                            </div>
                        </div>
                        <div class="row cl">
                            <label class="form-label col-sm-2 col-md-2 col-md-offset-2">邮箱:</label>
                            <div class="formControls col-sm-5 col-md-5">
                                <input type="text" name="email" class="input-text" value="<?php echo $email ?>">
                            </div>
                        </div>
                        <div class="row cl">
                            <label class="form-label col-sm-2 col-md-2 col-md-offset-2">性别:</label>
                            <div class="formControls skin-minimal col-xs-5">
                                <input type="radio" id="gender" name="gender" value="male" <?php echo ($gender == 'male')? 'checked': '' ?>>
                                <label for="gender">男</label>
                                <input type="radio" id="gender" name="gender" value="female" <?php echo ($gender == 'female')? 'checked': '' ?>>
                                <label for="gender">女</label>
                                <input type="radio" id="gender" name="gender" value="secret" <?php echo ($gender == 'secret')? 'checked': '' ?>>
                                <label for="gender">保密</label>
                            </div>
                        </div>
                        <div class="row cl">
                            <label class="form-label col-sm-2 col-md-2 col-md-offset-2">年龄:</label>
                            <div class="formControls col-sm-5 col-md-5">
                                <select name="age" class="select valid">
                                    <!--表达式可以放在括号中-->
 <option value="1" <?php echo ($age == '1')? 'selected': '' ?>>30以内</option>
                                    <option value="2" <?php echo $age == '2' ? 'selected': '' ?>>30到50</option>
                                    <option value="3" <?php echo ($age == '3')? 'selected': '' ?>>50岁以上</option>
                                </select>
                            </div>
                        </div>
                        <div class="row cl">
                            <label class="form-label col-sm-2 col-md-2 col-md-offset-2">备注:</label>
                            <div class="formControls col-sm-5 col-md-5">
                                <textarea name="memo" id="" cols="30" rows="10" class="textarea valid"><?php echo isset($memo)? $memo : '' ?></textarea>
                            </div>
                        </div>
                        <div class="row cl">
                            <div class="formControls col-md-5 col-md-offset-4">
                                <button class="add btn btn-primary size-L">提交</button>
                            </div>
                        </div>
                    </div>
                </form>
                <div class="result"></div>
            </div>

        </div>
    </div>
</div>
</body>
</html>

注释：

PHP页面中可以有多个<?php ?>标签，可以在任何位置。

虽然位置分散，但逻辑上仍然是一个整体，可以引用变量（按先后顺序）。

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