php 下载保存文件保存到本地的两种实现方法

第一种：

    <?php 
    function downfile()
    {
     $filename=realpath("resume.html"); //文件名
     $date=date("Ymd-H:i:m");
     Header( "Content-type:  application/octet-stream "); 
     Header( "Accept-Ranges:  bytes "); 
    Header( "Accept-Length: " .filesize($filename));
     header( "Content-Disposition:  attachment;  filename= {$date}.doc"); 
     echo file_get_contents($filename);
     readfile($filename); 
    }
    downfile();
    ?>

或

    <?php 
    function downfile($fileurl)
    {
     ob_start(); 
     $filename=$fileurl;
     $date=date("Ymd-H:i:m");
     header( "Content-type:  application/octet-stream "); 
     header( "Accept-Ranges:  bytes "); 
     header( "Content-Disposition:  attachment;  filename= {$date}.doc"); 
     $size=readfile($filename); 
      header( "Accept-Length: " .$size);
    }
     $url="url地址";
     downfile($url);
    ?> 

第二种：

    <?php 
    function downfile($fileurl)
    {
    $filename=$fileurl;
    $file  =  fopen($filename, "rb"); 
    Header( "Content-type:  application/octet-stream "); 
    Header( "Accept-Ranges:  bytes "); 
    Header( "Content-Disposition:  attachment;  filename= 4.doc"); 
    $contents = "";
    while (!feof($file)) {
     $contents .= fread($file, 8192);
    }
    echo $contents;
    fclose($file); 
    }
    $url="url地址";
    downfile($url);
    ?>

PHP实现下载文件的两种方法。分享下，有用到的朋友看看哦。

方法一：

    <?php
    /**
    * 下载文件
    * header函数
    *
    */
    header('Content-Description: File Transfer');

    header('Content-Type: application/octet-stream');
    header('Content-Disposition: attachment; filename='.basename($filepath));
    header('Content-Transfer-Encoding: binary');
    header('Expires: 0′);
    header('Cache-Control: must-revalidate, post-check=0, pre-check=0′);
    header('Pragma: public');
    header('Content-Length: ' . filesize($filepath));
    readfile($file_path);
    ?>

了解php中header函数的用法。

方法二：

    <?php
    //文件下载
    //readfile
    $fileinfo = pathinfo($filename);
    header('Content-type: application/x-'.$fileinfo['extension']);
    header('Content-Disposition: attachment; filename='.$fileinfo['basename']);
    header('Content-Length: '.filesize($filename));
    readfile($thefile);
    exit();
    ?>