php中數(shù)據(jù)的大局部導(dǎo)入(csv文件)

　　有時(shí)寫程序時(shí)后臺(tái)要求把大量數(shù)據(jù)導(dǎo)入數(shù)據(jù)庫(kù)中，比如計(jì)算機(jī)考試成績(jī)的查詢、電話簿的數(shù)據(jù)等一般都是存放在excel中的，這時(shí)我們可把數(shù)據(jù)導(dǎo)出成csv文件，然后通過以下程序即可在后臺(tái)批量導(dǎo)入數(shù)據(jù)到數(shù)據(jù)庫(kù)中。

　　下面只是主要程序部分：

<?php
/*****************************************
**********作者：沖星/arcow****************
**********njj@nuc.edu.cn*******************
**********php導(dǎo)入csv文件到數(shù)據(jù)庫(kù)**********
**********同時(shí)計(jì)算程序執(zhí)行時(shí)間***********
**********www.knowsky.com***********
****************************************/
//定義獲取時(shí)間函數(shù)
function getmicrotime(){
    list($usec, $sec) = explode(" ",microtime());
    return ((float)$usec + (float)$sec);
}
?>

<?php
$time_start = getmicrotime();
include("db.inc.php");//連接數(shù)據(jù)庫(kù)
$db=new testcsv;
?>
<?php
$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 "<br>";
echo $sql."<br>";
$db->query($sql);
echo "SQL語句執(zhí)行成功！<br>";
$sql="insert into scores(idcard,names,num,sex,nation,score) values('";
}
fclose ($handle);
$time_end = getmicrotime();
$time = $time_end - $time_start;
echo "程序執(zhí)行時(shí)間：".$time."秒";
?>