note 99588 added to function.trim

Please consider the following: $a = '0'; if (trim($a)) { echo 'Never ever ...'; } else { echo 'YES, "(bool)trim(\'0\')" is FALSE'; } So never forget to use: if (trim($a) != '') ... This cast costs me some time... ---- Server IP: 217.160.235.204 Probable Submitter: 62.154.196.97 ---- Manual Page -- http://www.php.net/manual/en/function.trim.php Edit -- https://master.php.net/note/edit/99588 Del: integrated -- https://master.php.net/note/delete/99588/integrated Del: useless -- https://master.php.net/note/delete/99588/useless Del: bad code -- https://master.php.net/note/delete/99588/bad+code Del: spam -- https://master.php.net/note/delete/99588/spam Del: non-english -- https://master.php.net/note/delete/99588/non-english Del: in docs -- https://master.php.net/note/delete/99588/in+docs Del: other reasons-- https://master.php.net/note/delete/99588 Reject -- https://master.php.net/note/reject/99588 Search -- https://master.php.net/manage/user-notes.php