how to remove html comments in php
Question
I am trying to remove any comments embedded with the html file
$data= file_get_contents($stream); <br>
$data = preg_replace('<!--*-->', '', $data); <br>
echo $data;
I am still ending up with all the comments < !- bla bla bla -->
What am I doing wrong?
8 answers
solution1
12 2020-07-30 08:01:38
// Remove unwanted HTML comments
function remove_html_comments($content = '') {
return preg_replace('/<!--(.|\s)*?-->/', '', $content);
}
As you can read here: https://davidwalsh.name/remove-html-comments-php
solution2
4 2019-02-16 11:13:24
I know lots of answers are already posted. I have tried many but for me this regular expression works for multi line (in my case 40 line of comments) HTML comments removal.
$string = preg_replace("~<!--(.*?)-->~s", "", $string);
Cheers:)
solution3
3 2012-07-05 02:58:14
The below regex will remove HTML comments, but will keep conditional comments.
<!--(?!<!)[^\[>].*?-->
solution4
3
You could do it without using regular expression:
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;
}
solution5
1 2012-07-05 02:57:16
s/<?--[^>]*?-->//g
switch up regular expression
solution6
0 2012-07-05 02:56:39
Regular expressions are very difficult to corral into doing what you want here.
To match arbitrary text in a regex, you need
.*, not just*. Your expression is looking for<!-, followed by zero or more-characters, followed by-->.
solution7
0 2021-06-14 17:16:54
I would not use regex for such a task. Regex can fail for unexpected characters.
Instead, I would do something that is safe, like this:
$linesExploded = explode('-->', $html);
foreach ($linesExploded as &$line) {
if (($pos = strpos($line, '<!--')) !== false) {
$line = substr($line, 0, $pos);
}
}
$html = implode('', $linesExploded);
solution8
-2 2012-07-05 03:00:41
You should do this way:
$str = "<html><!-- this is a commment -->OK</html>";
$str2 = preg_replace('/<!--.*-->/s', '', $str);
var_dump($str2);
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