note 78375 added to language.references.whatdo

Watch out for this: foreach ($somearray as &$i) { // update some $i... } ... foreach ($somearray as $i) { // last element of $somearray is mysteriously overwritten! } Problem is $i contians reference to last element of $somearray after the first foreach, and the second foreach happily assigns to it! ---- Server IP: 212.24.129.51 Probable Submitter: 80.188.199.89 ---- Manual Page -- http://www.php.net/manual/en/language.references.whatdo.php Edit -- https://master.php.net/note/edit/78375 Del: integrated -- https://master.php.net/note/delete/78375/integrated Del: useless -- https://master.php.net/note/delete/78375/useless Del: bad code -- https://master.php.net/note/delete/78375/bad+code Del: spam -- https://master.php.net/note/delete/78375/spam Del: non-english -- https://master.php.net/note/delete/78375/non-english Del: in docs -- https://master.php.net/note/delete/78375/in+docs Del: other reasons-- https://master.php.net/note/delete/78375 Reject -- https://master.php.net/note/reject/78375 Search -- https://master.php.net/manage/user-notes.php