PHP using file stream to download file method

PHP using file stream to download file method

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PHP using file stream to download file method

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1、flush — 刷新输出缓冲2、ob_clean — 清空（擦掉）输出缓冲区注：上面2个函数可以解决PHP下载文件内容乱码

DEMO:

        //fname is the file name to download    //$fpath is the folder where the files are downloaded, the default is Downlod     function download($fname,$fpath="download/"){        //Avoid Chinese file name in case of file name not detected, transcoding UTF-8->GBK        $filename=iconv (' Utf-8 ',' gb2312 ',$fname);$path=$fpath.$filename;if(!file_exists ($path)){//Detect if file exists            Echo "file does not exist!" "; die(); }$fp=fopen ($path,' R ');//read-only mode open        $filesize=filesize ($path);//File size        //returned file (stream form)Header"Content-type:application/octet-stream");//return by byte sizeHeader"Accept-ranges:bytes");//Return file sizeHeader"Accept-length: $filesize");//Here the client's popup dialog box, corresponding to the file nameHeader"content-disposition:attachment; Filename= ".$filename);//================ Key ====================Ob_clean (); Flush ();//================= Key ===================        //Set shunt        $buffer=1024x768;//A file byte counter        $count=0; while(!feof ($fp) && ($filesize-$count>0)){$data=fread ($fp,$buffer);$count+=$data;//Count            Echo $data;//Transmit data to browser side} fclose ($fp); } Download ("Testfile.doc");?>

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