16

我有一个文件,我收到一个非常奇怪的错误。错误是:

The character encoding of the HTML document was not declared. 
The document will render with garbled text in some browser configurations if 
the document contains characters from outside the US-ASCII range. 
The character encoding of the page must to be declared in the document or 
in the transfer protocol.

来自的文件是(indexmws.php):

session_start();
if(!isset($_SESSION['validUser']) || $_SESSION['validUser'] !== true){
header('Location: loginmws.php');
}

include_once('db.php');
include_once('amazonmws.php');
include_once('decidemws.php');
include_once('author.php');
include_once('amazonPricingMWS.php');

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title>Decision Maker</title>

这是不引发错误的文件 (index.php) 的完全副本,除了添加 amazonPricingMWS.php 并重定向到标题中带有 mws.php 的页面:

session_start();
if(!isset($_SESSION['validUser']) || $_SESSION['validUser'] !== true){
header('Location: login.php');
}

include_once('db.php');
include_once('amazon.php');
include_once('decide.php');
include_once('author.php');

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title>Decision Maker</title>

谁能向我解释为什么我在 indexmws.php 中出现此错误?

4

2 回答 2

24

出现错误是因为浏览器期望文件的前 1024 个字节中的编码格式。在第一种情况下,可能是包含文件输出了一些内容。

浏览器现在缓冲文件的前 1024 个字节以检查字符编码。如果在前 1024 个字节中没有遇到编码描述,则会显示此警告。

在您的情况下,您可以在包含其他文件之前使用 php 标头来指定内容类型:

header('Content-type: text/html; charset=utf-8');

有关更多信息,请阅读: http: //gtmetrix.com/specify-a-character-set-early.html

于 2012-07-24T15:25:10.443 回答
10

我有类似的问题但这背后的确切原因是我错过了以下添加

<meta content="utf-8" http-equiv="encoding">

在头标签之后

<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
于 2012-10-10T13:02:20.713 回答