php导入导出cvs文件格式

1、导入

<?php

header("Content-type: text/html; charset=gb2312");   

$fname = $_FILES['myfile']['tmp_name']; 
 
error_reporting(0);// 导入csv格式的文件 

$connect=mysql_connect("localhost","root","***") or die("could not connect to database"); 

mysql_select_db("mydb",$connect) or die (mysql_error()); 

mysql_query("set names 'gbk'"); 

if(file_exists($fname)){
	
    $handle = fopen($fname, 'r'); 

    $result = input_csv($handle); //解析csv 
	
	$len_result = count($result); 
	 
	if($len_result==0){ 
	
        echo '没有任何数据！'; 
		
        exit; 
		
    } 
	
	for ($i = 1; $i < $len_result; $i++) { //循环获取各字段值,从1开始，不插入第一行表头
	
        //$name = iconv('gb2312', 'utf-8', $result[$i][0]); //中文转码 
		
        //$sex = iconv('gb2312', 'utf-8', $result[$i][1]); 
		
		$name  =  $result[$i][0];
		
		$sex  =   $result[$i][1];
		
		$age = $result[$i][2]; 
		
		$data_values .= "('$name','$sex','$age'),"; 
		
    } 
	
    $data_values = substr($data_values,0,-1); //去掉最后一个逗号 
	
	fclose($handle); //关闭指针 
	
	$sql  =	 "insert into student (name,sex,age) values $data_values";
	
	$query = mysql_query($sql);
	
	 if($query){ 
	
        echo '导入成功！'; 
		
    }else{ 
	
        echo '导入失败！'; 
		
    } 
}else{
	
	echo "文件不存在，请重新选择";exit;
	
}


function input_csv($handle) { 

    $out = array (); 
	
    $n = 0; 
	
    while ($data = fgetcsv($handle, 10000)) { 
	
        $num = count($data); 
		
        for ($i = 0; $i < $num; $i++) { 
		
            $out[$n][$i] = $data[$i]; 
			
        } 
		
        $n++; 
		
    } 
	
    return $out; 
	
} 

?>  

　　

2、导出

$result = mysql_query("select * from student order by id asc");
$str = "姓名,性别,年龄
";
$str = iconv('utf-8','gb2312',$str);
while($row=mysql_fetch_array($result))
{
    $name = iconv('utf-8','gb2312',$row['name']); //中文转码
    $sex = iconv('utf-8','gb2312',$row['sex']);
    $str .= $name.",".$sex.",".$row['age']."
"; //用引文逗号分开
}
$filename = date('Ymd').'.csv'; //设置文件名
export_csv($filename,$str);

function export_csv($filename,$data)
{
      header("Content-type:text/csv");
      header("Content-Disposition:attachment;filename=".$filename);
      header('Cache-Control:must-revalidate,post-check=0,pre-check=0');
      header('Expires:0'); header('Pragma:public');
      echo $data;
}

　　

附：数据库sql文件

CREATE TABLE `student` ( 
  `id` int(11) NOT NULL auto_increment, 
  `name` varchar(50) NOT NULL, 
  `sex` varchar(10) NOT NULL, 
  `age` smallint(3) NOT NULL default '0', 
  PRIMARY KEY  (`id`) 
) ENGINE=MyISAM  DEFAULT CHARSET=utf8;