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Bug #15160 strip_tags problem with <!-- javascript --> comments inside tags
Submitted: 2002-01-22 07:24 UTC Modified: 2002-01-22 14:29 UTC
Avg. Score:4.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: martin at humany dot com Assigned:
Status: Not a bug Package: Strings related
PHP Version: 4.1.1 OS: Linux 2.4 and Windows XP
Private report: No CVE-ID: None
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 [2002-01-22 07:24 UTC] martin at humany dot com
I experienced problems with strip_tags on javascript inside <!-- //--> brackets that also contains //comments. Below is first two properly working examples, then a example to reproduce the problem. Tested in both Windows XP and Linux 2.4, both with PHP 4.1.1

$data = "<br>hello there<!-- comment // --><br>";
$out = strip_tags($data);
echo $out;
//$out = hello there, as expected :)
$data = "<br>hello there<!-- comment --><br>";
$out = strip_tags($data);
echo $out;
//$out = hello there, as expected :)

$data = "<!-- \n".
	"function a(i) {\n".
	"// comment\n".
	"var x=1;\n".
	"if (i>1) x=2;\n".
	"// -->";
$out = strip_tags($data);
echo $out;
$out now is:
1) x=2;
// -->


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 [2002-01-22 14:29 UTC]
strip_tags removes everything between < and the _first_ occurence of >
If you have "<abc> >" it returns " >".
Not a bug.
If you want to remove a whole comment, you need to use a regex.
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