note 113617 added to function.count

If you wish to test if an array contains any elements (or is empty), you might tempted to use count to do something like this: <?php if (count($my_array) > 0) { // array is not empty... } // or this ... if (count($my_array) === 0) { // array is empty... } ?> Using the count function here is totally unnecessary and slower. Instead, you should rely on the fact that empty arrays evaluate to false when cast to a boolean: <?php $hasElements = (boolean) $my_array; // or ... $isEmpty = !$my_array; // or in a conditional statement... if ($my_array) { // array is not empty... } ?> Only use count if you need to know if an array contains a specific number of elements n (where n > 0). ---- Server IP: 192.41.45.150 Probable Submitter: 217.171.229.15 ---- Manual Page -- http://php.net/manual/en/function.count.php Edit -- https://master.php.net/note/edit/113617 Del: integrated -- https://master.php.net/note/delete/113617/integrated Del: useless -- https://master.php.net/note/delete/113617/useless Del: bad code -- https://master.php.net/note/delete/113617/bad+code Del: spam -- https://master.php.net/note/delete/113617/spam Del: non-english -- https://master.php.net/note/delete/113617/non-english Del: in docs -- https://master.php.net/note/delete/113617/in+docs Del: other reasons-- https://master.php.net/note/delete/113617 Reject -- https://master.php.net/note/reject/113617 Search -- https://master.php.net/manage/user-notes.php