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Bug #21744 strip_tags misses exclamation marks in alt text
Submitted: 2003-01-19 04:39 UTC Modified: 2003-05-30 22:45 UTC
From: dan at freelancer dot net Assigned: rasmus (profile)
Status: Closed Package: Unknown/Other Function
PHP Version: 4.3.0 OS: Linux
Private report: No CVE-ID: None
View Developer Edit
 [2003-01-19 04:39 UTC] dan at freelancer dot net 
The following code prints "!" (without the quotes):

print strip_tags('<IMG ALT="Bang Not Stripped!">');

I would expect it to print nothing.

Same thing happens here:

print strip_tags('<AREA ALT="Bang Not Stripped!">');

Here is an example copied from the command line:

[dan@192 v008]$ php
<?
print strip_tags('<IMG ALT="Bang Not Stripped!">') . "\n";
?>
!
[dan@192 v008]$

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 [2003-01-19 04:58 UTC] dan at freelancer dot net 
Tried the same using PHP 4.0.6 and did not get the problem:

[admin@labworks ukshopsearch]$ php
<?
print strip_tags('<IMG ALT="Bang Not Stripped!">') . "\n";
?>
X-Powered-By: PHP/4.0.6
Content-type: text/html


[admin@labworks ukshopsearch]$
 [2003-01-19 05:10 UTC] moriyoshi@php.net 
Verified with HEAD
 [2003-01-19 05:13 UTC] rasmus@php.net 
My fault.  I'll fix it soonish.
 [2003-01-19 05:34 UTC] moriyoshi@php.net 
This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at http://snaps.php.net/.
 
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
 
Thank you for the report, and for helping us make PHP better.
 [2003-05-30 22:43 UTC] csnyder at chxo dot com 
This bug is still present in 4.3.1 Linux.
 [2003-05-30 22:45 UTC] philip@php.net 
It was fixed in 4.3.2 as 4.3.1 is essentially 4.3.0 (with the one small change to the CGI).
 
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