PHP / HTML表单处理

Question

The assignment is to create an html form where the user enters the required information, and process the form data via PHP to display the output using $_post method. 任务是创建一个html表单，用户在其中输入所需的信息，并通过PHP处理表单数据以使用$ _post方法显示输出。 I can't seem to get the output right, it just basically displays the php code that I wrote. 我似乎无法正确输出，它只是显示我编写的php代码。 any insight is greatly appreciated Note: The html code is lengthy, but I'm sure it's correct. 注意：html代码很长，但是我确定它是正确的。 My problem is with the PHP(next) code. 我的问题是PHP（next）代码。 the following is the output: 以下是输出：

0){ $Name = trim($_POST['name']); $adr = trim($_POST['address']); $City = trim($_POST['city']); $state = trim($_POST['state']); $zip = trim($_POST['zip']); $phone = trim($_POST['phone']); $email = trim($_POST['email']); $err = array(); if($Name == ''){ $err[] = "Please enter your name"; } if($adr == ''){ $err[] = "Please enter your address"; } if($City == ''){ $err[] = "Please enter your city"; } if($state == ''){ $err[] = "Please enter your State"; } if($zip == ''){ $err[] = "Please enter your zip"; } if($phone == ''){ $err[] = "Please enter your phone number"; } if($email == ''){ $err[] = "Please enter your email"; } if(count($err) > 0){ foreach($err as $value){ echo"$value
"; } echo " Go Back"; } else{ //header("Location:HTMLform.html"); echo "Name: " . $_POST["name"]; echo "Address: " . $_POST["address"] ; echo "City: " . $_POST["city"] ; echo "State: " . $_POST["state"]; echo "Zip: " . $_POST["zip"]; echo "Phone: " . $_POST["phone"]; echo "Email: " . $_POST["email"]; } } ?>

page 1 (HTML FORM) 第1页（HTML表单）

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
 <head>
  <title>Coffee Order</title>
 </head>
 <body><h1>The Coffee House</h1>


<div>
    <div><h3>Order Form</h3></div>
    <form name='frmInput' action="process.php" method="post">
    <table><tr><td>Coffee:</td>
        <td><select name="coffeeCode" id="Coffee">
<option value="">Select Coffee:</option><option value="bv">Boca Villa ($7.99/lb) 
</option>
<option value="sbr">South Beach Rhythm ($8.99/lb)</option>
<option value="pp">Pumpkin Paradise ($8.99/lb)</option>
<option value="ss">Sumatran Sunset ($9.99/lb)</option>
<option value="bb">Bali Batur ($10.95/lb)</option>
<option value="dd">Double Dark ($9.95/lb)</option></select></td></tr>
    <tr><td>
        Type:</td>
        <td>
<input type="radio" name="coffeeType" value="caf">Regular<br/>
<input type="radio" name="coffeeType" value="decaf">Decaffeinated
        </td>
    </tr>
    <tr>
        <td>Quantity (in pounds):</td>
        <td>
    <input type="text" name="quantity" maxlength="3" size="3" id="Quantity">
        </td>
    </tr>
    <tr>
        <td>Name:</td>
        <td>
            <input type="text" name="name" id="Name">
        </td>
    </tr>
    <tr>
        <td>E-mail address:</td>
        <td>
            <input type="text" name="email" id="Email">
        </td>
    </tr>
    <tr>
        <td>Telephone #:</td>
        <td>
    <input type="text" name="phone" maxlength="14" size="14" id="Telephone">
        </td>
    </tr>
    <tr>
        <td>Address:</td>
        <td>
            <input type="text" name="address" id="Address">
        </td>
    </tr>
    <tr>
        <td>City:</td>
        <td>
            <input type="text" name="city" id="City">
        </td>
    </tr>
    <tr>
        <td>State:</td>
        <td>
<input type="text" name="state" maxlength="2" size="2" 
style="text-transform: uppercase" id="State">
        </td>
    </tr>
    <tr>
         <td>Zip:</td>
        <td>
<input type="text" name="zip" maxlength="10" size="10" id="Zip">
         </td>
    </tr>
    <tr>
<td><input type="submit" value="Submit"></td><td><input    type="reset"></td>
    </tr>
    </table>
</form></div></body>
</html>

php code: php代码：

<?php
if (count($_POST) > 0){

$Name = trim($_POST['name']);
$adr = trim($_POST['address']);
$City = trim($_POST['city']);
$state = trim($_POST['state']);
$zip = trim($_POST['zip']);
$phone = trim($_POST['phone']);
$email = trim($_POST['email']);
$err = array();

if($Name == ''){
$err[] = "Please enter your name";
}
if($adr == ''){
$err[] = "Please enter your address";
}
if($City == ''){
$err[] = "Please enter your city";
}
if($state == ''){
$err[] = "Please enter your State";
}
if($zip == ''){
$err[] = "Please enter your zip";
}
if($phone == ''){
$err[] = "Please enter your phone number";
}
if($email == ''){
$err[] = "Please enter your email";
}

if(count($err) > 0){
   foreach($err as $value){
   echo"$value<br/>";
}
echo "<a href='HTMLform.html'> Go Back</a>";
}
 else{
//header("Location:HTMLform.html");
 echo "Name: " . $_POST["name"];

 echo "Address: " . $_POST["address"] ;

 echo "City: " . $_POST["city"] ;

 echo "State: " . $_POST["state"];

 echo "Zip: " . $_POST["zip"];

 echo "Phone: " . $_POST["phone"];

 echo "Email: " . $_POST["email"];
 }

}
 ?>

Answer 1

PHP file are saved with .php extension and has an opening of PHP文件以.php扩展名保存，并且以
PHP code should be at the top of the page, before any HTML tag PHP代码应该在页面顶部，在任何HTML标记之前
Instead of using $variable == '' to check if it's empty, use function called empty($variable) that return true if empty 而不是使用$ variable ==''来检查它是否为空，而使用称为empty($variable)函数，如果为空则返回true
You are doing a redirect in the first line of the else statement, so the rest of the code won't be executed, therefore the echo part will never be reached. 您正在else语句的第一行中进行重定向，因此将不执行其余代码，因此将永远无法到达echo部分。 Put this header("Location:HTMLform.html"); 放置此header("Location:HTMLform.html"); as the last statement in the else scope 作为else范围中的最后一条语句

Answer 2

You have some errors in your code. 您的代码中有一些错误。

There is a space between <? <?之间有一个空格 tag and php in line 1. Remove that 第1行中的标记和php 。删除它
There is no closing curly brace for this , if (count($_POST) > 0) { . if (count($_POST) > 0) { ， if (count($_POST) > 0) {没有右花括号。 Add a closing curly brace before the ending ?> tag. 在结尾的?>标记之前添加一个大括号。
You have the name field of telephone set to 'phone'. 您将电话的名称字段设置为“电话”。
So find all lines having this 所以找到所有有这行
```
  $_POST['telephone'] 
```
and change it to 并将其更改为
```
  $_POST['phone'] 
```

Also, If you want to see the results, comment out 另外，如果要查看结果，请注释掉

  header('Location:HTMLForm.html');

Answer 3

old 旧

// is this suppose to be an array?
    $err = array();
    if($_POST['name'] == null){
        array_push($err,'error stuff stuff stuff');
    }
    print_r($err);

// if not array
    $err = '';
    if($_POST['name'] == null){
        $err.= 'error stuff stuff stuff';
    }

Also, What are you trimming from the post? 另外，您从帖子中修剪什么？

PHP / HTML表单处理

问题描述

3 个解决方案

解决方案1
0 2014-04-10 05:43:09

解决方案2
0 2014-04-10 05:59:56

解决方案3
0 2016-06-09 06:34:05

PHP / HTML表单处理

问题描述

3 个解决方案

解决方案1 0 2014-04-10 05:43:09

解决方案2 0 2014-04-10 05:59:56

解决方案3 0 2016-06-09 06:34:05

解决方案1
0 2014-04-10 05:43:09

解决方案2
0 2014-04-10 05:59:56

解决方案3
0 2016-06-09 06:34:05