php implementation file download of supports Chinese names

  • 2020-12-05 17:08:30
  • OfStack


 /*======================================================
  $FileName  File name , Will pass 
  $FilePath  Is the file path . optional , It can be a relative path or an absolute path 
       A path can only consist of English and data , No Chinese 
 ======================================================*/
<?php 
 header("Content-type: text/html;charset=utf-8");
 if(strlen($FileName)<=3){echo " Failed download: You downloaded the wrong file ";return;}
 $FileName=iconv("utf-8","gb2312",$FileName);// Do file name format conversion , In case Chinese is confused 
 // Start judging the path 
 if(!is_null($FilePath)&&strlen($FilePath)>1){

  if(substr($FilePath,0,1)=='/'){// Determine if it is an absolute path 

   $FilePath=$_SERVER['DOCUMENT_ROOT'].$FilePath;

    }
  if(substr($FilePath,-1)!="/"){// Check to see if it is  /  At the end 

   $FilePath=$FilePath.'/';

    }
  if(is_numeric(strpos($FilePath,":\"))){// Check if it is an absolute path 

   $FilePath=str_replace("/","\",$FilePath);

    }
   }elseif(strlen($FilePath)==1&&$FilePath!="/"){

    $FilePath=$FilePath."/";

   }else{

    $FilePath="";

  }
  if(!file_exists($FilePath.$FileName)){

   echo" Download failed: The file to be downloaded was not found ";return;

   }
  /*================================================
    Send the header information associated with the download 
  =================================================*/

  header("Content-type: application/octet-stream");

  header("Accept-Ranges: bytes");// Returns in bytes 

  header("Accept-Length: $FileSize");// Return file size 

  header("Content-Disposition: attachment; filename=".$FileName);// Here the client side pops up a dialog box with the corresponding file name 

  /*================================================
    Start downloading related 
  =================================================*/ 
$FileSize=filesize($FilePath.$FileName);

  $File=fopen($FilePath.$FileName,"r");// Open the file 

  $FileBuff=512;

  while($FileSize>=0){

   $FileSize-=$FileBuff;

   echo fread($File,$FileBuff);

  }

  fclose($File);
 }
?>


Related articles: