note 64363 added to language.operators.assignment

I come accross things I can't find in here. I find this: $geshi =& new GeSHi($source, $language); What's =& ? Something I'll never need i guess ? Same as &= only backwards ? [php] <?php $s = 'abcdefg'; $t = 'hijklmn'; $t =& $s; echo ($t); '// with =& output is: abcdefg '// with &= output is: `bddf ?>[/php] Hate to be the noob, but I'm still lost. ---- Server IP: 66.163.161.117 Probable Submitter: 204.96.146.159 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/language.operators.assignment.php Edit -- http://master.php.net/note/edit/64363 Del: integrated -- http://master.php.net/note/delete/64363/integrated Del: useless -- http://master.php.net/note/delete/64363/useless Del: bad code -- http://master.php.net/note/delete/64363/bad+code Del: spam -- http://master.php.net/note/delete/64363/spam Del: non-english -- http://master.php.net/note/delete/64363/non-english Del: in docs -- http://master.php.net/note/delete/64363/in+docs Del: other reasons-- http://master.php.net/note/delete/64363 Reject -- http://master.php.net/note/reject/64363 Search -- http://master.php.net/manage/user-notes.php