php中数据的批量导入csv文件代码

/*****************************************
**********作者：冲星/arcow****************
**********njj@nuc.edu.cn*******************
**********php导入csv文件到数据库**********
**********同时计算程序执行时间***********
**********www.111com.net***********
****************************************/
//定义获取时间函数
function getmicrotime(){
    list($usec, $sec) = explode(" ",microtime());
    return ((float)$usec + (float)$sec);
}
?>

$time_start = getmicrotime();
include("db.inc.php");//连接数据库
$db=new testcsv;
?>

$handle = fopen ("test.csv","r");
$sql="insert into scores(idcard,names,num,sex,nation,score) values('";
while ($data = fgetcsv ($handle, 1000, ",")) {
   $num = count ($data);
   for ($c=0; $c < $num; $c++) {
       if($c==$num-1){$sql=$sql.$data[$c]."')";break;}
       $sql=$sql.$data[$c]."','";
   }
print "
";
echo $sql."
";
$db->query($sql);
echo "SQL语句执行成功！
";
$sql="insert into scores(idcard,names,num,sex,nation,score) values('";
}
fclose ($handle);
$time_end = getmicrotime();
$time = $time_end - $time_start;
echo "程序执行时间：".$time."秒";
?>