PHP表单数据验证&x2B；重新使用_Php_Forms_Validation_Redirect

PHP表单数据验证&x2B；重新使用

php forms validation redirect

PHP表单数据验证&x2B；重新使用,php,forms,validation,redirect,Php,Forms,Validation,Redirect,我需要用PHP创建一个表单，该表单需要验证输入的数据，并在一切正常的情况下发送。我花了一段时间才找到它，但如果所有表格都填写正确，它就会重定向。但是，接收页面不从表单页面获取数据。我可以对表单应用两个操作吗？除此之外，我如何将数据发送到自身（$_SERVER[“PHP_SELF”]）和另一个页面？我在接收页面中的所有变量定义上都出现了未定义的索引错误以下是表单页面的代码： <!DOCTYPE html> <!-- Jonathan DeMars 4/20/20

我需要用PHP创建一个表单，该表单需要验证输入的数据，并在一切正常的情况下发送。我花了一段时间才找到它，但如果所有表格都填写正确，它就会重定向。但是，接收页面不从表单页面获取数据。我可以对表单应用两个操作吗？除此之外，我如何将数据发送到自身（$_SERVER[“PHP_SELF”]）和另一个页面？我在接收页面中的所有变量定义上都出现了未定义的索引错误

以下是表单页面的代码：

<!DOCTYPE html>
    <!-- Jonathan DeMars
    4/20/2017
    http://chelan.highline.edu/~jon_demars3/116/magazine.html
    -->
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>GQ - Subscription</title>
        <meta name="description" content="Register to GQ">
        <meta name="author" content="CSCI 116 Student: Jonathan DeMars">

        <link rel="stylesheet"
              type="text/css"
              href="styles.css">
    </head>
    <?php
        ini_set('display_errors', 1);
        error_reporting(E_ALL);
    ?>

<body>

<h1>Register to GQ</h1>
<p>GQ or "Gentleman's Quarterly" is an international monthly men's magazine based in New York City. The publication focuses on fashion, style,
and culture for men; though articles on food, movies, fitness, sex, music, travel, sports, technology,
and books are also featured.</p>
<hr>
<br>
<p><strong>Please complete the following form:</strong></p>
<?php
$firstnameErr = $lastnameErr = $addressErr = $cityErr = $zipcodeErr = $monthsErr = "";
$first_name = $last_name = $address = $city = $zipcode = $months = "";



if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $first_name = test_input($_POST["first_name"]);
  $last_name = test_input($_POST["last_name"]);
  $address = test_input($_POST["address"]);
  $city = test_input($_POST["city"]);
  $zipcode = test_input($_POST["zipcode"]);
  $months = test_input($_POST["months"]);
}

if ($_SERVER["REQUEST_METHOD"] == "POST") {
  if (empty($_POST["first_name"])) {
    $firstnameErr = "First name is required";
  } else {
    $first_name = test_input($_POST["first_name"]);
  if (!preg_match("/^[a-zA-Z ]*$/",$first_name)) {
  $firstnameErr = "Only letters and white space allowed";
}
  }
  if (empty($_POST["last_name"])) {
    $lastnameErr = "Last name is required";
  } else {
    $last_name = test_input($_POST["last_name"]);
  if (!preg_match("/^[a-zA-Z ]*$/",$last_name)) {
  $lastnameErr = "Only letters and white space allowed";
}
  }

  if (empty($_POST["address"])) {
    $addressErr = "Address is required";
  } else {
    $address = test_input($_POST["address"]);
  }

  if (empty($_POST["city"])) {
    $cityErr = "City is required";
  } else {
    $city = test_input($_POST["city"]);
    if (!preg_match("/^[a-zA-Z ]*$/",$city)) {
  $cityErr = "Only letters and white space allowed";
}
  }

  if (empty($_POST["zipcode"])) {
    $zipcodeErr = "Zipcode is required";
  } else {
    $zipcode = test_input($_POST["zipcode"]);
    if (!preg_match("/^([0-9]{5})(-[0-9]{4})?$/i",$zipcode)) {
        $zipcodeErr = "Please enter a valid zipcode.";
    }
  }

    if (empty($_POST["months"])) {
    $monthsErr = "You must subscribe for 1 or more months.";
  } else {
    $months = test_input($_POST["months"]);
    if (!preg_match("/^[1-9][0-9]*$/",$months)) {
        $monthsErr = "Must enter a valid number.";
    }
  }

}

 if($firstnameErr == "" && $lastnameErr == "" && $addressErr == "" && $cityErr == "" && $zipcodeErr == "" &&  $monthsErr == ""){

    header('Location: magazinevalidation_post.php');
    exit();
}

function test_input($data) {
  $data = trim($data);
  $data = stripslashes($data);
  $data = htmlspecialchars($data);
  return $data;
}


?>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
    <p>First Name: <input type="text" name="first_name" size="15" value="<?php echo $first_name;?>" <span class="error">* <?php echo $firstnameErr;?></span>&nbsp;&nbsp;&nbsp;

    Last Name: <input type="text" name="last_name" size="15" value="<?php echo $last_name;?>"  <span class="error">* <?php echo $lastnameErr;?></span></p>
    <br>

    <p>Address: <input type="text" name="address" size="20" value="<?php echo $address;?>"  <span class="error">* <?php echo $addressErr;?></span></p>

    <p>City: <input type="text" name="city" size="15" value="<?php echo $city;?>" <span class="error">* <?php echo $cityErr;?></span> </p>

    <p>State: <select name="state">
    <option value="AL">Alabama</option>
    <option value="AK">Alaska</option>
    <option value="AZ">Arizona</option>
    <option value="AR">Arkansas</option>
    <option value="CA">California</option>
    <option value="CO">Colorado</option>
    <option value="CT">Connecticut</option>
    <option value="DE">Delaware</option>
    <option value="DC">District of Columbia</option>
    <option value="FL">Florida</option>
    <option value="GA">Georgia</option>
    <option value="HI">Hawaii</option>
    <option value="ID">Idaho</option>
    <option value="IL">Illinois</option>
    <option value="IN">Indiana</option>
    <option value="IA">Iowa</option>
    <option value="KS">Kansas</option>
    <option value="KY">Kentucky</option>
    <option value="LA">Louisiana</option>
    <option value="ME">Maine</option>
    <option value="MD">Maryland</option>
    <option value="MA">Massachusetts</option>
    <option value="MI">Michigan</option>
    <option value="MN">Minnesota</option>
    <option value="MS">Mississippi</option>
    <option value="MO">Missouri</option>
    <option value="MT">Montana</option>
    <option value="NE">Nebraska</option>
    <option value="NV">Nevada</option>
    <option value="NH">New Hampshire</option>
    <option value="NJ">New Jersey</option>
    <option value="NM">New Mexico</option>
    <option value="NY">New York</option>
    <option value="NC">North Carolina</option>
    <option value="ND">North Dakota</option>
    <option value="OH">Ohio</option>
    <option value="OK">Oklahoma</option>
    <option value="OR">Oregon</option>
    <option value="PA">Pennsylvania</option>
    <option value="RI">Rhode Island</option>
    <option value="SC">South Carolina</option>
    <option value="SD">South Dakota</option>
    <option value="TN">Tennessee</option>
    <option value="TX">Texas</option>
    <option value="UT">Utah</option>
    <option value="VT">Vermont</option>
    <option value="VA">Virginia</option>
    <option value="WA">Washington</option>
    <option value="WV">West Virginia</option>
    <option value="WI">Wisconsin</option>
    <option value="WY">Wyoming</option>
    </select>

    <p>Zip Code: <input type="text" name="zipcode" size="4" value="<?php echo $zipcode;?>"  <span class="error">* <?php echo $zipcodeErr;?></p>
    <br>
    <br>

    <p>How many months would you like to subscribe? <input type="text" name="months" size="1" value="<?php echo $months;?>" <span class="error">* <?php echo $monthsErr;?></span></p>
    <br>
    <br>

    <input type="submit" name="submit" value="Continue" />
</form>

    <p><a href="index.html">Return to index page</a></p>
</body>
</html>


GQ-订阅
向GQ注册
GQ或“绅士季刊”是一本国际男性月刊，总部设在纽约市。该出版物关注时尚、风格、，
男性文化；尽管有关于食物、电影、健身、性、音乐、旅游、体育、科技的文章，
还有一些书



请填写以下表格：
您可以使用会话将数据传递到另一个窗体。在使用会话变量访问form2中的这些数据之后，在重定向之前在会话中设置值。
$\u会话-可能是最好的方式
<?php
session_start();

$_SESSION['first_name'] = $first_name;
$_SESSION['last_name'] = $last_name; 
$_SESSION['address'] = $address;
$_SESSION['city'] = $city;
$_SESSION['address'] = $address;
$_SESSION['zipcode'] = $zipcode;
$_SESSION['months'] = $months;
header('Location: magazinevalidation_post.php');
exit();

您可以使用AJAX向任意多个处理文件发送数据。但是我认为不能将action属性设置为多个页面。在任何情况下，如果您希望您的方法将数据发送到同一页面（只需重新加载POST数据），只需将其设置为空，如action=“”，就足够了。但是，是的，我认为您可以简单地使用AJAX来实现这一点。
<?php
session_start();

$_SESSION['first_name'] = $first_name;
$_SESSION['last_name'] = $last_name; 
$_SESSION['address'] = $address;
$_SESSION['city'] = $city;
$_SESSION['address'] = $address;
$_SESSION['zipcode'] = $zipcode;
$_SESSION['months'] = $months;
header('Location: magazinevalidation_post.php');
exit();

<?php
session_start();

echo $_SESSION['first_name'];
echo $_SESSION['last_name'] 
echo $_SESSION['address'];
echo $_SESSION['city'];
echo $_SESSION['address'];
echo $_SESSION['zipcode'];
echo $_SESSION['months'];
?>