note 86695 added to function.in-array

Be aware of oddities when dealing with 0 (zero) values in an array... This script: <?php $array = array('testing',0,'name'); var_dump($array); //this will return true var_dump(in_array('foo', $array)); //this will return false var_dump(in_array('foo', $array, TRUE)); ?> It seems in non strict mode, the 0 value in the array is evaluating to boolean FALSE and in_array returns TRUE. Use strict mode to work around this peculiarity. This only seems to occur when there is an integer 0 in the array. A string '0' will return FALSE for the first test above (at least in 5.2.6). ---- Server IP: 117.104.160.194 Probable Submitter: 58.6.148.157 ---- Manual Page -- http://www.php.net/manual/en/function.in-array.php Edit -- https://master.php.net/note/edit/86695 Del: integrated -- https://master.php.net/note/delete/86695/integrated Del: useless -- https://master.php.net/note/delete/86695/useless Del: bad code -- https://master.php.net/note/delete/86695/bad+code Del: spam -- https://master.php.net/note/delete/86695/spam Del: non-english -- https://master.php.net/note/delete/86695/non-english Del: in docs -- https://master.php.net/note/delete/86695/in+docs Del: other reasons-- https://master.php.net/note/delete/86695 Reject -- https://master.php.net/note/reject/86695 Search -- https://master.php.net/manage/user-notes.php