#22139 [NEW]: htmlspecialchars() fails if argument is NULL

From: ivars@elva.lv Operating system: Linux Slackware 7.1 PHP version: 4.2.3 PHP Bug Type: Strings related Bug description: htmlspecialchars() fails if argument is NULL The following piece of code takes up a reasonable amount of CPU resources and fails to finish, something like an infinite loop. $a=NULL; $a = htmlspecialchars($a); The script terminates after reaching the maximum execution time. Not sure if the problem exists with newer versions of PHP. -- Edit bug report at http://bugs.php.net/?id=22139&edit=1 -- Try a CVS snapshot: http://bugs.php.net/fix.php?id=22139&r=trysnapshot Fixed in CVS: http://bugs.php.net/fix.php?id=22139&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=22139&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=22139&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=22139&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=22139&r=support Expected behavior: http://bugs.php.net/fix.php?id=22139&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=22139&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=22139&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=22139&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=22139&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=22139&r=dst IIS Stability: http://bugs.php.net/fix.php?id=22139&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=22139&r=gnused