note 123719 added to function.empty

I normally count() an array, so I wanted to see how empty() would stack up. <?php $test = array(); $test2 = array(); for ($x = 0; $x < 1000; $x++) $test[] = $x; $ts = microtime(true); for ($x = 0; $x < 100000000; $x++) { if (count($test)) { } } echo "Time taken: " . (microtime(true) - $ts) . " sec\n"; ?> For 100,000,000 comparisons, here are the results against PHP 7.2.16 on my hardware: count($test): 2.697 sec count($test2): 2.596 sec $test === array(): 2.579 sec $test2 === array(): 2.552 sec empty($test): 3.085 sec empty($test2): 3.113 sec In short, it doesn't matter what method is used although empty() is actually just ever so slightly slower despite it being a language construct. YMMV. ---- Server IP: 216.194.115.244 Probable Submitter: 174.18.83.153 ---- Manual Page -- http://php.net/manual/en/function.empty.php Edit -- https://master.php.net/note/edit/123719 Del: integrated -- https://master.php.net/note/delete/123719/integrated Del: useless -- https://master.php.net/note/delete/123719/useless Del: bad code -- https://master.php.net/note/delete/123719/bad+code Del: spam -- https://master.php.net/note/delete/123719/spam Del: non-english -- https://master.php.net/note/delete/123719/non-english Del: in docs -- https://master.php.net/note/delete/123719/in+docs Del: other reasons-- https://master.php.net/note/delete/123719 Reject -- https://master.php.net/note/reject/123719 Search -- https://master.php.net/manage/user-notes.php