php简易表单

来源：互联网发布：python mysql模块安装编辑：程序博客网时间：2024/06/18 17:29
<!DOCTYPE HTML><html><head>    <meta charset="utf-8">    <title>xiaochen</title>    <style>        .error{color: #FF0000;}    </style></head><body><?php$nameErr=$emailErr=$genderErr=$websiteErr="";$name=$email=$gender=$comment=$website="";if($_SERVER["REQUEST_METHOD"]=="POST") {    if (empty($_POST["name"]))    {        $nameErr = "名字是必需的";    }    else {        $name = test_input($_POST["name"]);        if (!preg_match("/^[a-zA-Z]*$/", $name))        {            $nameErr = "只允许字母和空格";        }    }    if (empty($_POST["email"]))    {        $emailErr = "邮箱是必需的";    }    else    {        $email = test_input($_POST["email"]);        if (!preg_match("/([\w\-]+@[\w\-]+\.[\w\-]+)/", $email))        {            $emailErr = "邮箱格式非法哦";        }    }    if (empty($_POST["gender"]))    {        $genderErr = "性别是必需的";    }    else {        $gender = test_input($_POST["gender"]);    }    if (empty($_POST["comment"]))    {        $comment = "";    }    else    {        $comment = test_input($_POST["comment"]);    }    if (empty($_POST["website"]))    {        $website = "";        $websiteErr = "URL地址必须的";    }    else {        $website = test_input($_POST["website"]);        if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i", $website))        {            $websiteErr = "URL地址非法哦";        }    }}function test_input($data){    $data=trim($data);    $data=stripslashes($data);    $data=htmlspecialchars($data);    return $data;}?><h2 align="center">表单</h2><p><span class="error">* 必需字段</span></p><form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">    名字：    <input type="text" name="name" value="<?php echo $name;?>">    <span class="error">* <?php echo $nameErr;?></span>    <br><br>    Email：    <input type="text" name="email" value="<?php echo $email;?>">    <span class="error">* <?php echo $emailErr;?></span>    <br><br>    网址：    <input type="text" name="website" value="<?php echo $website?>">    <span class="error">* <?php echo $websiteErr;?></span>    <br><br>    备注：    <textarea name="conmment" rows="5" cols="40"><?php echo $comment;?></textarea>    <br><br>    性别：    <input type="radio"  name="gender" <?php if (isset($gender) && $gender=="female") echo "checked";?> value="female">女    <input type="radio"  name="gender" <?php if (isset($gender) && $gender=="male") echo "checked";?> value="male">男    <span class="error">* <?php echo $genderErr;?></span>    <br><br>    <input type="submit" name="submit" value="Submit"></form><?phpecho "<h2>您输入的内容为：</h2>";echo $name;echo "<br>";echo $email;echo "<br>";echo $website;echo "<br>";echo $comment;echo "<br>";echo $gender;?></body></html>
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