php 如何删除网页脚本中的 \ufeff 字符？
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How do I remove a \ufeff character in my webpage scripts?
提问by J4Numbers
I am trying to, simply put, remove a hidden zero-width-line-break character (U+FEFF) in my script. The webpage that it has appeared on is at http://cynicode.co.uk(Please note, the index page has been tinkered with and is the only one which functions properly at the moment)
我试图，简单地说，在我的脚本中删除一个隐藏的零宽度换行符（U+FEFF）。它出现的网页是http://cynicode.co.uk（请注意，索引页已经过修补，是目前唯一可以正常运行的页）
By looking at the html elements on the page, this shows up:
通过查看页面上的 html 元素，可以看到：
The key point being the red dot between < body >and < !--5-- >. This, when hovered over, shows that it is a \ufeffcharacter. The problem is that, when I look through the script, there is no such character that exists.
关键点是< body >和之间的红点< !--5-- >。将鼠标悬停在上面时，这表明它是一个\ufeff字符。问题是，当我查看脚本时，不存在这样的角色。
I am using PHP and HTML to construct this page, and the items between < !--4-- >and < !--5-- >consists of the following. Firstly, on the actual index page itself:
我正在使用 PHP 和 HTML 来构建此页面，并且介于< !--4-- >和之间的项目< !--5-- >由以下内容组成。首先，在实际的索引页面上：
<?php
echo "<!--4-->";
echo "<head><meta charset='utf-8' /><link rel='shortcut icon' type='image/ico' href='./images/CyniCode.ico'>
<title>CyniCode :: Index</title>
<meta name='description' content='The Cynic's paradise! Home of Cynical.' />
<meta name='author' content='Cynical' />
<meta name='keywords' content='Cynical;Blog;Code' />
<link type='text/css' rel='stylesheet' href='./css/mystyle.css' />
<link rel='shortcut icon' type='image/ico' href='./images/CyniCode.ico'>
<link href='http://fonts.googleapis.com/css?family=Muli' rel='stylesheet' type='text/css' />
<script type='text/javascript' src='http://static.proofiction.net/jquery/jquery-1.9.1.min.js'></script>
<script type='text/javascript' src='http://static.proofiction.net/jquery/loginwait.js'></script>
<script type='text/javascript' src='http://static.proofiction.net/jquery/googleAnalytics.js'></script>
<script type='text/javascript' src='./http://static.proofiction.net/jquery/jquery.bxslider.js'></script>
<script type='text/javascript' src='./http://static.proofiction.net/jquery/jquery.bxslider.min.js'></script>
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type='text/javascript'><!--
google_ad_client = 'ca-pub-xxxxxxxxxxxx';
/* BiggerNavBox */
google_ad_slot = '3977705372';
google_ad_width = 300;
google_ad_height = 600;
//-->
</script>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-xxxxxxxx-1', 'cynicode.co.uk');
ga('send', 'pageview');
</script>
</head>";
require_once './functions/page.php';
This constitutes for the Index page. The page.php script referenced is my cheat for setting the page up quickly and cleanly. However... there is a small remaining difference between the two comments on the page. This is the remaining difference between the two comments.
这构成了索引页面。引用的 page.php 脚本是我快速、干净地设置页面的秘诀。但是......页面上的两条评论之间存在微小的差异。这是两个评论之间的剩余差异。
<?php
echo "<!--5-->";
Any help that anyone can offer would be much appreciated. All code pieces were direct copy and pastes from my scripts.
任何人都可以提供的任何帮助将不胜感激。所有代码片段都是从我的脚本中直接复制和粘贴的。
回答by Cthulhu
Some of your .phpfiles (probably ./functions/page.phpcontains Byte Order Mark. If you are using some IDE, check this file's encoding properties and with luck you will be able to remove it.
您的某些.php文件（可能./functions/page.php包含Byte Order Mark. 如果您使用的是某些 IDE，请检查此文件的编码属性，如果幸运的话，您将能够将其删除。
EditIf you use *nix, Elegant way to search for UTF-8 files with BOM?should help.
编辑如果您使用*nix，以优雅的方式搜索带有BOM 的UTF-8 文件？应该有帮助。
回答by sapeish
Here is a solution to a similar issue: Extra BOM character in HTML invalidating DOCTYPE tag
这是类似问题的解决方案：HTML 中的额外 BOM 字符使 DOCTYPE 标记无效
Basically the source of the issue are PHP files encoded in UTF8 with BOM, encoding them in UTF-8 without BOMsolves the issue.
基本上问题的根源是用 编码的 PHP 文件UTF8 with BOM，对它们进行编码可以UTF-8 without BOM解决问题。
