#42861 [NEW]: strtr() crashes when $from argument is empty string or null, with Unicode ON

From: mahesh dot vemula at in dot ibm dot com Operating system: RHEL4, Windows XP PHP version: 6CVS-2007-10-05 (snap) PHP Bug Type: Strings related Bug description: strtr() crashes when $from argument is empty string or null, with Unicode ON Description: ------------ strtr() crashes on php6 with unicode ON , when $from argument is given as any of the following: empty string Null e.g: var_dump( strtr("hello", array("" => "string") ) ); var_dump( strtr("hello", "", "string") ); This is applicable for PHP6 with Unicode. Reproduce code: --------------- <?php var_dump( strtr("hello", array("" => "string") ) ); var_dump( strtr("hello", array('' => "string") ) ); var_dump( strtr("hello", array(null => "string") ) ); var_dump( strtr("hello", array(NULL => "string") ) ); var_dump( strtr("hello", "", "string") ); var_dump( strtr("hello", '', "string") ); var_dump( strtr("hello", NULL, "string") ); var_dump( strtr("hello", null, "string") ); ?> Expected result: ---------------- unicode(5) "hello" unicode(5) "hello" unicode(5) "hello" unicode(5) "hello" unicode(5) "hello" unicode(5) "hello" unicode(5) "hello" unicode(5) "hello" Actual result: -------------- On Windows: crashes On linux(RHEL4): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 1066789985 bytes) in %s on line %d -- Edit bug report at http://bugs.php.net/?id=42861&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=42861&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=42861&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=42861&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=42861&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=42861&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=42861&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=42861&r=needscript Try newer version: http://bugs.php.net/fix.php?id=42861&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=42861&r=support Expected behavior: http://bugs.php.net/fix.php?id=42861&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=42861&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=42861&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=42861&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42861&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=42861&r=dst IIS Stability: http://bugs.php.net/fix.php?id=42861&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=42861&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=42861&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=42861&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=42861&r=mysqlcfg