php xsl大数据量导出（100亿条数据导出）

<?php
/*导出1000000万条数据实例*/


/*导入类包*/
require('xlsTools.php');

/*实例化类包*/
$xlsTools = new xlsTools();


//定义列名和导出名称以及格式
$xlsTools->start([
    'title'=>['列名1','列名2'],   //列名
    'type'=>'xls',               //导出的excel的类型
    'name'=>'导出'                //导出的excel的文件名
]);

/* 导出100万条（1000000条）示例 */
for ($i=0; $i<1000000; $i++){
    $row = ['列值1'=>1,'列值2'=>'x'];

    //输出数据，并刷新缓冲区
    $xlsTools->oneData($row);
}

/*结束导出*/
$xlsTools->end();

<?php

/*这个是类包*/

class xlsTools{
	
	var $inEncode='utf-8';
	var $outEncode='gb2312';

    protected $rowCount; //存储已经存在内存中的记录条数


	protected $rowFlushCount; //  一次flush的数据条数

	public function __construct( $rowFlushCount = 1000 )
	{
			$this->rowFlushCount = $rowFlushCount;
			$this->rowCount = 0;
	}

	public function __destruct()
	{
		// TODO: Implement __destruct() method.
	}

	public function start($param){
        // todo 文件名这里建议允许自定 ddcoder
    	$filename = $param['type'].'-'.date('YmdHis').'('.$param['name'].')';
    	$this->doStart($param['title'],$filename);
    }
    public function doStart($keys,$filename){
    	$this->download($filename.'.xls');

    	// php输出到缓冲区
    	echo '';
    	echo '';
        // 有时候需要自定义表头 ddcdoer 修改于2017-08-26
        if($keys){echo'\r\n";}

        //刷新缓冲区
        ob_flush();
    	flush();}
    
    //下载文件
	//$mimeType='application/force-download'
	//Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
	//$mimeType='application/vnd.ms-excel'function download($fname='data', $data= null, $mimeType='application/force-download'){if(headers_sent($file, $line)){echo'Header already sent @ '.$file.':'.$line;
    		exit();}
    	//header('Cache-Control: no-cache;must-revalidate');
		// //fix ie download bug
    	header('Pragma: no-cache, no-store');
    	header("Expires: Wed, 26 Feb 1997 08:21:57 GMT");if(strpos($_SERVER["HTTP_USER_AGENT"], 'MSIE')){$fname= urlencode($fname);
    		header('Content-type: '.$mimeType);}else{
    		header('Content-type: '.$mimeType.';charset=utf-8');}
    	header("Content-Disposition: attachment; filename=\"".$fname.'"');
    	//header("Content-Description: File Transfer");if($data){
    		header('Content-Length: '. strlen($data));echo$data;
    		exit();}}
    
    public function csv_export($keys , $expData , $type , $count){$csv='';
    	foreach ($keys as $key){$csv .='"'.iconv("UTF-8", "gb2312",$key).'",';}$csv .="\n";
    	
    	foreach($expData as $expArr){
    		foreach ($expArr as $e_key=>$exp){$csv .=  iconv("UTF-8", "gbk",$this->escapeCSV($expArr[$e_key])).',';}$csv .="\n";}
		ob_end_clean();$fileName=$type.'-'.date('YmdHis').'('.$count.').csv';
    	header("Content-type:text/csv"); 
		header("Content-Disposition:attachment;filename=".iconv("UTF-8", "gb2312",$fileName)); 
		header('Cache-Control:must-revalidate,post-check=0,pre-check=0'); 
		header('Expires:0'); 
		header('Pragma:public'); 
		ob_end_clean();echo$csv;}
    
    /**
     * 生成并下载csv文件
     */
    public function csv_export_f($keys , $expData , $fileName){
    	// exportfile$csv='';
    	foreach ($keys as $key){$csv .='"'.iconv("UTF-8", "gb2312",$key).'",';}$csv .="\n";
    	 
    	foreach($expData as $expArr){
    		foreach ($expArr as $e_key=>$exp){$csv .=  iconv("UTF-8", "gbk",$this->escapeCSV($expArr[$e_key])).',';}$csv .="\n";}
    	ob_end_clean();$fileName .='.csv';
    	header("Content-type:text/csv");
    	header("Content-Disposition:attachment;filename=".iconv("UTF-8", "gb2312",$fileName));
    	header('Cache-Control:must-revalidate,post-check=0,pre-check=0');
    	header('Expires:0');
    	header('Pragma:public');
    	ob_end_clean();echo$csv;}function escapeCSV($str){$str= str_replace(array(',','"',"\n\r"),array('','""',''),$str);
    	if($str==""){$str='""';}return$str;}

   	public function allData($rows){
		foreach($rows as $row){echo'\r\n";}
        ob_flush();
        flush();}

    public function oneData($row){echo'\r\n";
        ob_flush();
        flush();}functionend(){echo'
    
             
'.implode('
',$keys)."
        
        
          
    	  
    		       
    	
    	  
    		   
    	      
    	     
    	   
    		 
    	
    
    
    		   
    		 
    	
    	 
    	
    			  
    		
			 
    	
    	  
    	 
    
     
    		   
    		 
    	
    	 
    	
    			  
    		
    		 
    	
    	 
    	 
    
    
    
    	   
    		  
    	
    	 
    
	
             
'.implode('
',$row)."
        
    
	
         
'.implode('
',$row)."
    

     
         
';
        ob_flush();
        flush();
    }

	/*
	 * 多条数据flush一次 默认1000，有初始化对象决定
	 * */

	public function multiData( $row )
	{
		$this->rowCount++;
		echo  ''.implode('',$row)."\r\n";
		if( $this->rowCount >= $this->rowFlushCount  )
		{
            ob_flush();
			flush();
		}

	}
}