php中数据的批量导入(csv文件)
有时写程序时后台要求把大量数据导入数据库中,比如计算机考试成绩的查询、电话簿的数据等一般都是存放在Excel中的,这时我们可把数据导出成csv文件,然后通过以下程序即可在后台批量导入数据到数据库中。
下面只是主要程序部分:
- <?php
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- function getmicrotime(){
- list($usec, $sec) = explode(" ",microtime());
- return ((float)$usec + (float)$sec);
- }
- ?>
- <?php
- $time_start = getmicrotime();
- include("db.inc.php");
- $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语句执行成功!<br>";
- $sql="insert into scores(idcard,names,num,sex,nation,score) values('";
- }
- fclose ($handle);
- $time_end = getmicrotime();
- $time = $time_end - $time_start;
- echo "程序执行时间:".$time."秒";
- ?>