PHP入门1.6

来源：互联网发布：mongodb与mysql好处编辑：程序博客网时间：2024/06/04 19:11

表单项目
- htmlspecialchars()函数用来将一些预定义的字符转成HTML实体
  - 预定义字符 (结尾的分号都在中括号里的)
    - &——>[&amp];
    - ” ——>[&quot];
    - ’ ——>[&#039];
    - <——>[&lt];
    - >——>[&gt];
- trim()函数用于去除用户输入数据中不必要的字符
  - 空格
  - Tab
  - 换行
- stripslashes()函数去除用户输入数据中的反斜杠[ \ ]
- $_SERVER[“REQUEST_METHOD”]通过判断是否等于POST来检测表单是否被提交
- > action = “$_SERVER[“PHP_SELF” 表示表单数据被发送到当前页面
- >”$_SERVER[“PHP_SELF”]”服务器变量可能被黑客利用，故应使用httpspecialchars()函数来防止被黑客利用。

Example:    <!DOCTYPE html><html>    <head>        <meta charset="utf-8"/>        <title>Hello Php</title>        </head>    <body>        <?php             $user = $email = $sex = $csdn = $content = $checkbox = $school = "";            $checkboxArray = array("JAVA","Android");            if($_SERVER["REQUEST_METHOD"] == "POST"){                $user = input_special($_POST["user"]);                $email = input_special($_POST["email"]);                $sex = input_special($_POST["radio"]);                $csdn = input_special($_POST["CSDN"]);                $checkboxArray = $_POST["checkbox"];                $content = input_special($_POST["content"]);                $school = input_special($_POST["school"]);            }            function input_special($date){                $date = trim($date);                $date = stripcslashes($date);                $date = htmlspecialchars($date);                return $date;            }        ?>        <div class="form" style="float:left;">            <form name = "form" method = "post" action = "<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">                <p>                    用户名：<input type = "text" name = "user"/>                </p>                <p>                    用户邮箱：<input type = "text" name = "email"/>                </p>                <p>                    性别：<input name = "radio" type = "radio" value = "男" checked = "true">男                          <input name = "radio" type = "radio" value = "女">女                </P>                <p>                    CSDN地址：<input type = "text" name = "CSDN"/>                </p>                <p>                    简历：<textarea name = "content" rows = "5" cols = "25"></textarea>                </p>                <p>                    学习语言：                    <input name = "checkbox[]" type = "checkbox" value = "JAVA" checked="true"/>JAVA                    <input name = "checkbox[]" type = "checkbox" value = "Android"/>Android                    <input name = "checkbox[]" type = "checkbox" value = "C#"/>C#                    <input name = "checkbox[]" type = "checkbox" value = "PHP"/>PHP                    <input name = "checkbox[]" type = "checkbox" value = "HTML"/>HTML                </p>                <p>                    毕业学校：                    <select size = "1" name = "school">                        <option value="泉州师范学院">泉州师范学院</option>                        <option value="泉州大学">泉州大学</option>                    </select>                </p>                <P>                    <input name = "submit" type = "submit" value = "提交"/>                </p>            </form>        </div>        <div class="info" style="float:left;">        <?php            echo "<h3>提交的表单信息</h3>";            if($_SERVER["REQUEST_METHOD"] == "POST"){                echo "<br>";                echo $user;                echo "<br>";                echo $email;                echo "<br>";                echo $sex;                echo "<br>";                echo $csdn;                echo "<br>";                echo $content;                echo "<br>";                foreach ($checkboxArray as $value){                             echo $value." ";                             }                 echo "<br>";                echo $school;                echo "<br>";            }        ?>        <image src="EngineerZhong.jpg"/>        </div>    </body></html>

这里写图片描述

更新时间：2016年8月17日                 By：EngineerZhong

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