note 107370 added to class.splobjectstorage

As an iterator, SplObjectStorage traverses the _keys_ of the map (the $o1, $o2 of Example 2) rather than the values. To retrieve each of those in turn requires an additional lookup: <?php // As a map from objects to data $s = new SplObjectStorage(); $o1 = (object)array('a'=>1); $o2 = (object)array('b'=>2); $o3 = (object)array('c'=>3); $s[$o1] = "data for object 1"; $s[$o2] = array(1,2,3); foreach($s as $i => $key) { echo "Entry $i:\n"; // You get a numeric index var_dump($key, $s[$key]); echo "\n"; } ?> This makes sense when you use an SplObjectStorage as a set, since in that case all of the "values" are null. ---- Server IP: 202.89.58.1 Probable Submitter: 125.237.151.48 ---- Manual Page -- http://www.php.net/manual/en/class.splobjectstorage.php Edit -- https://master.php.net/note/edit/107370 Del: integrated -- https://master.php.net/note/delete/107370/integrated Del: useless -- https://master.php.net/note/delete/107370/useless Del: bad code -- https://master.php.net/note/delete/107370/bad+code Del: spam -- https://master.php.net/note/delete/107370/spam Del: non-english -- https://master.php.net/note/delete/107370/non-english Del: in docs -- https://master.php.net/note/delete/107370/in+docs Del: other reasons-- https://master.php.net/note/delete/107370 Reject -- https://master.php.net/note/reject/107370 Search -- https://master.php.net/manage/user-notes.php