Please Login First!"; exit(1); } ?> 0&&strlen($OJ_DATA)>8){ $basedir = "$OJ_DATA/$id"; if(strlen($basedir)>16&&$id>0){ //system("rm -rf $basedir"); recursiveDelete($basedir); } $sql="delete FROM `problem` WHERE `problem_id`=?"; pdo_query($sql,$id) ; $sql = "delete from `privilege` where `rightstr`=? "; pdo_query($sql, "p$id"); $sql = "update solution set problem_id=0 where `problem_id`=? "; pdo_query($sql, $id); $sql="select max(problem_id) FROM `problem`" ; $result=pdo_query($sql); $row=$result[0]; $max_id=$row[0]; $max_id++; if($max_id<1000)$max_id=1000; $sql="ALTER TABLE problem AUTO_INCREMENT = $max_id"; pdo_query($sql); ?>