Question

我有一个页面接收从表单传递的数据。它没有正确地重定向传递的所有变量。我认为这是因为传递的数据中有空格，因此URL在空格处断开。我试图做一个urlencode但我无法让它正常工作。我想我需要urlencode变量已经用空格传递，但我需要你的帮助。

以下是代码：

<?
$aff = $_GET['aff'] ;
$click_id = $_GET['click_id'] ;
$email = $_GET['from'];
$fname = $_GET['name_(awf_first)'];
$lname = $_GET['name_(awf_last)'];
$zipcode = $_GET['custom_zipcode'];
$address = $_GET['custom_address'];
$phone = $_GET['custom_phone_no'];
$state = $_GET['custom_state'];
$city = $_GET['custom_city'];
$subid = $_GET['meta_adtracking'] ;
$cblink = $_GET['cblink'];
$keyword = $_GET['keyword'] ;
$keyword = eregi_replace('[^a-z0-9 ]', '2', $keyword);
?>
<META HTTP-EQUIV="refresh" CONTENT=0;URL="http://mywebsite.com/page/?pID=sample&email=<?print $email?>&fname=<?print $fname?>&lname=<?print $lname?>&addr=<?print $address?>&city=<?print $city?>&state=<?print $state?>&zip=<?print $zipcode?>&hphone=<?print $phone?>&mphone=<?print $phone?>&country=US&pubSubID=<?print $subid?>&destURL=http://mywebsite.com/page/testpage.php?pubSubID=[pubSubID]&email=[email]">
<html>
<body>
</body></html>

Answer 1

使用http_build_query

$data = array('foo'=>'bar',
              'baz'=>'boom',
              'cow'=>'milk',
              'php'=>'hypertext processor');

echo http_build_query($data) . "\n";
echo http_build_query($data, '', '&amp;');

?>
The above example will output:
foo=bar&baz=boom&cow=milk&php=hypertext+processor
foo=bar&amp;baz=boom&amp;cow=milk&amp;php=hypertext+processor

适合您的情况

$get_data=$_GET;
echo http_build_query($get_data) . "\n";
echo http_build_query($get_data, '', '&amp;');

Answer 2

有些问题需要解决：

访问未验证存在的数组的索引：如果您尝试读取不存在的变量，则PHP会引发错误。在读取该变量之前，您应该使用isset或array_key_exists（如果是数组），例如：
```
if (isset($_GET['aff'])) {
    $aff = $_GET['aff'];
} else {
    $aff = null;
}
```
您还可以使用conditional operator ?:作为更短的变体：
```
$aff = isset($_GET['aff']) ? $_GET['aff'] : null;
```

您需要对网址参数值使用正确的编码：使用urlencode根据application/x-www-form-urnelcoded content type或rawurlencode对普通percent-encoding进行编码或者 - 在构建整个查询时 - http_build_query：

$query = array(
    'pID' => 'sample',
    'email' => isset($_GET['from']) ? $_GET['from'] : null,
    'fname' => isset($_GET['name_(awf_first)']) ? $_GET['name_(awf_first)'] : null,
    'lname' => isset($_GET['name_(awf_last)']) ? $_GET['name_(awf_last)'] : null,
    'addr' => isset($_GET['custom_address']) ? $_GET['custom_address'] : null,
    'city' => isset($_GET['custom_city']) ? $_GET['custom_city'] : null,
    'state' => isset($_GET['custom_state']) ? $_GET['custom_state'] : null,
    'zip' => isset($_GET['custom_zipcode']) ? $_GET['custom_zipcode'] : null,
    'hphone' => isset($_GET['custom_phone_no']) ? $_GET['custom_phone_no'] : null,
    'mphone' => isset($_GET['custom_phone_no']) ? $_GET['custom_phone_no'] : null,
    'country' => 'US',
    'pubSubID' => isset($_GET['meta_adtracking']) ? $_GET['meta_adtracking'] : null,
    'destURL' => 'http://mywebsite.com/page/testpage.php?pubSubID=[pubSubID]&email=[email]'
);
$query = http_build_query($query);

您需要对HTML属性值使用正确的编码;使用htmlspecialchars：

<META HTTP-EQUIV="refresh" CONTENT="<?php echo htmlspecialchars('0;URL=http://mywebsite.com/page/?'.$query); ?>">

Answer 3

您需要URL-encode所有值。特别是您传递的URL作为destURL参数的值。您只需转换一次网址（例如，尝试this online tool），因为它在您的代码中似乎是静态的：

...&destURL= http%3a%2f%2fmywebsite.com%2fpage%2ftestpage.php%3fpubSubID%3d%5bpubSubID%5d%26email%3d%5bemail%5d

HTTP GET重定向无法正常工作

3 个答案: