php 删除数据表与删除数据库

php 删除数据表与删除数据库

//---------------------------删除数据表
function Ebak_Drop($tablename,$dbname){
 global $empire;
 $dbname=RepPostVar($dbname);
 $empire->query("use `$dbname`");
 $count=count($tablename);
 if(empty($count))
 {printerror("EmptyChangeDelTb","history.go(-1)");}
 $a="";
 $first=1;
 for($i=0;$i<$count;$i++)
 {
  if(empty($first))
  {
   $a.=",";
     }
  else
  {
   $first=0;
  }
  $a.="`".$tablename[$i]."`";
    }
 $sql1=$empire->query("DROP TABLE IF EXISTS ".$a.";");
 printerror("DelTbSuccess","ChangeTable.php?mydbname=$dbname");
}

//--------------------------删除数据库
function Ebak_DropDb($dbname){
 global $empire;
 $dbname=RepPostVar($dbname);
 if(empty($dbname))
 {
  printerror("NotChangeDelDb","history.go(-1)");
 }
 $sql=$empire->query("DROP DATABASE `$dbname`");
 if($sql)
 {
  printerror("DelDbSuccess","ChangeDb.php");
 }
 else
 {printerror("DbError","history.go(-1)");}
}