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Bug #75971 strip_tags removes incorrect part of string
Submitted: 2018-02-16 18:10 UTC Modified: 2018-02-16 18:25 UTC
From: barahtyan at gmail dot com Assigned:
Status: Not a bug Package: Strings related
PHP Version: 7.1.14 OS: Ubuntu 16.04
Private report: No CVE-ID: None
View Developer Edit
 [2018-02-16 18:10 UTC] barahtyan at gmail dot com 
Description:
------------
echo strip_tags('test <------ Test');

I expect to receive the same "test <------ Test", since there is not tags.

Unfortunately, PHP removes all string after <------.

I пуе "test " without <------ Test.

Test script:
---------------
echo strip_tags('test <------ Test');

Expected result:
----------------
test <------ Test

Actual result:
--------------
test

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 [2018-02-16 18:25 UTC] requinix@php.net
-Status: Open +Status: Not a bug
 [2018-02-16 18:25 UTC] requinix@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

> Warning
> Because strip_tags() does not actually validate the HTML, partial or broken tags can result in the removal of more
> text/data than expected.
 [2018-02-16 18:25 UTC] subjective@php.net 
strip_tags() is a pretty aggressive string function, not a "real" HTML/XML parser. So this should be the expected behavior:

From the manual:

Warning: Because strip_tags() does not actually validate the HTML, partial or broken tags can result in the removal of more text/data than expected.
 
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