Bug #78003 [NEW]: strip_tags output change since PHP 7.3

From: alex at buayacorp dot com Operating system: PHP version: 7.3.5 Package: *General Issues Bug Type: Bug Bug description:strip_tags output change since PHP 7.3 Description: ------------ While doing the migration from PHP 7.2 to PHP 7.3, we noticed an output change of strip_tags which broke some text parsing related code in our application. Since the release notes from PHP 7.3 only mentions the deprecation of strip tags stream filtering [1], we are wondering if this output change was an intended or not. You can see the different output in https://3v4l.org/lE5Vb [1] https://php.net/manual/en/migration73.deprecated.php#migration73.deprecated.core.strip-tags-streaming Test script: --------------- <?php $s=<<<FOO <script>if (i<j.length);</script> hola<a href="foo">demo</a> <script> /* <![CDATA[ */ /* ]]> */ if(a>2); </script> demo bar FOO; var_dump(strip_tags( $s, '<a>' )); Expected result: ---------------- string(18) "if (i2); demo bar" Actual result: -------------- string(26) "if (i */ if(a2); demo bar" -- Edit bug report at https://bugs.php.net/bug.php?id=78003&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=78003&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=78003&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=78003&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=78003&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78003&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78003&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78003&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78003&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78003&r=support Expected behavior: https://bugs.php.net/fix.php?id=78003&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78003&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78003&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78003&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=78003&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=78003&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78003&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78003&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78003&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78003&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78003&r=mysqlcfg