note 1065 modified in function.count by vrana

Be careful of recasting your variables, especially with database array returns: <?php $res = mysql_query("select * from blah") // a query that returns an empty set $row = mysql_fetch_array($res); // get's 0 since there's no return echo count($row); // echos 1 - since $row is not an array echo $row[0]; // echos "", but casts $row as an array? echo count($row); // echos 0 now ?> --was-- Be careful of recasting your variables, especially with database array returns: $res = mysql_query("select * from blah") // a query that returns an empty set $row = mysql_fetch_array($res); // get's 0 since there's no return echo count($row); // echos 1 - since $row is not an array echo $row[0]; // echos "", but casts $row as an array? echo count($row); // echos 0 now http://php.net/manual/en/function.count.php