如何删除php中的html注释
[英]how to remove html comments in php
问题描述
I am trying to remove any comments embedded with the html file
我正在尝试删除嵌入在 html 文件中的任何评论
$data= file_get_contents($stream); <br>
$data = preg_replace('<!--*-->', '', $data); <br>
echo $data;
I am still ending up with all the comments < !- bla bla bla -->我仍然以所有评论结束 <!- bla bla bla -->
What am I doing wrong?我究竟做错了什么？
8 个解决方案
解决方案1
12 2020-07-30 08:01:38
// Remove unwanted HTML comments
function remove_html_comments($content = '') {
return preg_replace('/<!--(.|\s)*?-->/', '', $content);
}
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解决方案2
4 2019-02-16 11:13:24
I know lots of answers are already posted.我知道已经发布了很多答案。 I have tried many but for me this regular expression works for multi line (in my case 40 line of comments) HTML comments removal.我已经尝试了很多，但对我来说，这个正则表达式适用于多行（在我的例子中是 40 行注释）HTML 注释删除。
$string = preg_replace("~<!--(.*?)-->~s", "", $string);
Cheers:)干杯：）
解决方案3
3 2012-07-05 02:58:14
The below regex will remove HTML comments, but will keep conditional comments.下面的正则表达式将删除 HTML 注释，但会保留条件注释。
<!--(?!<!)[^\[>].*?-->
解决方案4
3
You could do it without using regular expression:你可以不使用正则表达式来做到这一点：
function strip_comments($html)
{
$html = str_replace(array("\r\n<!--", "\n<!--"), "<!--", $html);
while(($pos = strpos($html, "<!--")) !== false)
{
if(($_pos = strpos($html, "-->", $pos)) === false)
$html = substr($html, 0, $pos);
else
$html = substr($html, 0, $pos) . substr($html, $_pos+3);
}
return $html;
}
解决方案5
1 2012-07-05 02:57:16
s/<?--[^>]*?-->//g
switch up regular expression切换正则表达式
解决方案6
0 2012-07-05 02:56:39
Regular expressions are very difficult to corral into doing what you want here.
正则表达式很难在此处执行您想要的操作。To match arbitrary text in a regex, you need
.*, not just*.要匹配正则表达式中的任意文本，您需要.*，而不仅仅是*。 Your expression is looking for<!-, followed by zero or more-characters, followed by-->.您的表达式正在寻找<!-，后跟零个或多个-字符，然后是-->。
解决方案7
0 2021-06-14 17:16:54
I would not use regex for such a task.我不会使用正则表达式来完成这样的任务。 Regex can fail for unexpected characters.正则表达式可能因意外字符而失败。
Instead, I would do something that is safe, like this:相反，我会做一些安全的事情，比如：
$linesExploded = explode('-->', $html);
foreach ($linesExploded as &$line) {
if (($pos = strpos($line, '<!--')) !== false) {
$line = substr($line, 0, $pos);
}
}
$html = implode('', $linesExploded);
解决方案8
-2 2012-07-05 03:00:41
You should do this way:你应该这样做：
$str = "<html><!-- this is a commment -->OK</html>";
$str2 = preg_replace('/<!--.*-->/s', '', $str);
var_dump($str2);
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