PHP表单数据验证+重定向

时间：2017-05-03 00:41:13

标签： php forms validation redirect

我有一个我需要在PHP中创建的表单，需要验证输入的数据，如果一切正常，则将其发送出去。我需要一段时间才能完成它，但如果所有表格都填写正确，它会重定向。但是，接收页面不会从表单页面获取数据。我可以对表单应用两个操作吗？我怎样才能将数据发送给自己（$ _SERVER [＆＃34; PHP_SELF＆＃34;]）和另一页？我在接收页面中的所有变量定义上收到未定义的索引错误。

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>

以下是接收页面的代码：

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>GQ - Thank you!</title>
        <meta name="description" content="Thank you for Registering 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>
<?php
echo "<h1>Order Summary</h1><hr>";

define("TAX", "0.10");
$first_name = $_POST['first_name'];
$last_name = $_POST['last_name'];
$address = $_POST['address'];
$city = $_POST['city'];
$state = $_POST['state'];
$zipcode = $_POST['zipcode'];
$months = $_POST['months'];
$name = $first_name . ' ' . $last_name;
$monthlyrate = 9.99;
$subtotal = $months * $monthlyrate;
$taxtotal = $subtotal * TAX;
$grandtotal = $subtotal + $taxtotal;

print "<p><strong>$name</strong></p>";
print "<strong>$address</strong><br>";
print "<strong>$city, $state $zipcode</strong><br>";
print "<p>Your Subscription: <strong>$months months</strong></p>";
print "Monthly Payments: <strong>$$subtotal</strong><br>";
print "Tax:";
echo "<strong> $";
echo round($taxtotal, 2, PHP_ROUND_HALF_UP);
echo "</strong>";
print "<br>Total:";
echo "<strong> $";
echo round($grandtotal, 2, PHP_ROUND_HALF_UP);
echo "</strong>";


print "<div><p>Thank you, $name, for your subscription. You will recieve your first copy of GQ within the week!
</p></div>";

?>

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

1 个答案:

答案 0 :(得分：0)

您可以使用会话将数据传递到另一个表单。在使用会话变量可以在form2中访问这些数据之后，重定向之前设置会话中的值。 $ _ SESSION - 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();

在magazinevalidation_post.php文件中，您可以使用

访问该值 
<?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'];
?>
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