CSV 文件的导入和导出类代码,PHP代码库,德仔网

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【PHP】 CSV 文件的导入和导出类
作者:haibrother / 发布于2013/10/24/ 501

	<?php
	/**
	* CSV 文件处理类
	*/
	class Csv{
	 public $csv_array; //csv数组数据
	 public $csv_str; //csv文件数据
	
	 public function __construct($param_arr, $column){
	 $this->csv_array = $param_arr;
	 $this->path = $path;
	 $this->column = $column;
	 }
	
	 /**
	 * 导出
	 * */
	 public function export(){
	 if(empty($this->csv_array) || empty($this->column)){
	 return false;
	 }
	 $param_arr = $this->csv_array;
	 unset($this->csv_array);
	 $export_str = implode(',',$param_arr['nav'])."\n";
	 unset($param_arr['nav']);
	 //组装数据
	 foreach($param_arr as $k=>$v){
	 foreach($v as $k1=>$v1){
	 $export_str .= implode(',',$v1)."\n";
	 }
	 }
	 //将$export_str导出
	 header( "Cache-Control: public" );
	 header( "Pragma: public" );
	 header("Content-type:application/vnd.ms-excel");
	 header("Content-Disposition:attachment;filename=txxx.csv");
	 header('Content-Type:APPLICATION/OCTET-STREAM');
	 ob_start();
	 // $file_str= iconv("utf-8",'gbk',$export_str);
	 ob_end_clean();
	 echo $export_str;
	 }
	
	 /**
	 * 导入
	 * */
	 public function import($path,$column = 3){
	 $flag = flase;
	 $code = 0;
	 $msg = '未处理';
	 $filesize = 1; //1MB
	 $maxsize = $filesize * 1024 * 1024;
	 $max_column = 1000;

	 //检测文件是否存在
	 if($flag === flase){
	 if(!file_exists($path)){
	 $msg = '文件不存在';
	 $flag = true;
	 }
	 }
	 //检测文件格式
	 if($flag === flase){
	 $ext = preg_replace("/.*\.([^\.]+)/","\$1",$path);
	 if($ext != 'csv'){
	 $msg = '只能导入CSV格式文件';
	 $flag = true;
	 }
	 }
	
	 //检测文件大小
	 if($flag === flase){
	 if(filesize($path)>$maxsize){
	 $msg = '导入的文件不得超过'.$maxsize.'B文件';
	 $flag = true;
	 }
	 }

	 //读取文件
	 if($flag == flase){
	 $row = 0;
	 $handle = fopen($path,'r');
	 $dataArray = array();
	 while($data = fgetcsv($handle,$max_column,",")){
	 $num = count($data);
	 if($num < $column){
	 $msg = '文件不符合规格真实有：'.$num.'列数据';
	 $flag = true;
	 break;
	 }

	 if($flag === flase){
	 for($i=0;$i<3;$i++){
	 if($row == 0){
	 break;
	 }
	 //组建数据
	 $dataArray[$row][$i] = $data[$i];
	 }
	 }
	 $row++;
	 }
	 }
	
	 return $dataArray;
	 }
	}

	$param_arr = array(
	 'nav'=>array('用户名','密码','邮箱'),
	 array(0=>array('xiaohai1','123456','xiaohai1@zhongsou.com'),
	 1=>array('xiaohai2','213456','xiaohai2@zhongsou.com'),
	 2=>array('xiaohai3','123456','xiaohai3@zhongsou.com')
	 ));
	
	$column = 3;
	$csv = new Csv($param_arr, $column);
	//$csv->export();
	$path = 'C:\Documents and Settings\Administrator\Local Settings\Temp\txxx.csv';
	$import_arr = $csv->import($path,3);
	var_dump($import_arr);

	?>
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.CSV 文件的导入和导出类