php下载文件工具类支持中文名称（兼容）

一个兼容中文名称的下载文件工具类

知兮丶青 工具类
阅读(319) 2017-12-11
php下载文件工具类支持中文名称（兼容）
php下载文件工具类支持中文名称（兼容）

摘录个好用的php下载方法，放哪哪用。

HttpUtil类摘录于thinkphp3.2。

因为thinkphp5.0无该方法，所以挪来用了。

觉得真心好用就在此分享、备忘下。


类已经我优化了几个地方使得兼容中文名称，和兼容主流浏览器下载显示的文件中文名称。


下载代码

HttpUtil.php

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/**
 * HTTP工具类
 * @author cxq 微知兮
 */
class HttpUtil{
 
    /**
     * 下载文件
     * 可以指定下载显示的文件名，并自动发送相应的Header信息
     * 如果指定了content参数，则下载该参数的内容
     * @static
     * @access public
     * @param string $filename 下载文件名
     * @param string $showname 下载显示的文件名
     * @param string $content  下载的内容
     * @param integer $expire  下载内容浏览器缓存时间
     * @throws Exception
     * @return void
     */
    static public function download($filename, $showname='',$cOntent='',$expire=180) {
        if(is_file($filename)){
            $length = filesize($filename);
        }else if($content != ''){
            $length = strlen($content);
        }else{
            throw new Exception('文件不存在');
        }
        if(empty($showname)){
            $showname = $filename;
        }
        $showname = ltrim(substr($showname, strrpos($showname, '/')),"/");
        if(!empty($filename)){
            $type = mime_content_type($filename);
        }else{
            $type = "application/octet-stream";
        }
        $showname = urlencode($showname);
        $showname = str_replace("+", "%20", $showname);
        //发送Http Header信息 开始下载
        header("Pragma: public");
        header("Cache-control: max-age=".$expire);
        //header('Cache-Control: no-store, no-cache, must-revalidate');
        header("Expires: " . gmdate("D, d M Y H:i:s",time()+$expire) . "GMT");
        header("Last-Modified: " . gmdate("D, d M Y H:i:s",time()) . "GMT");
        //header("Content-Disposition: attachment; filename=".$showname);
        $ua = $_SERVER['HTTP_USER_AGENT'];
        if(preg_match("/MSIE/", $ua)){
            header('Content-Disposition: attachment; filename="' . $showname . '"');
        }else if(preg_match("/Firefox/", $ua)){
            header('Content-Disposition: attachment; filename*="utf8\'\'' . $showname . '"');
        }else{
            header('Content-Disposition: attachment; filename="' . $showname . '"');
        }
        header("Content-Length: ".$length);
        header("Content-type: ".$type);
        header('Content-Encoding: none');
        header("Content-Transfer-Encoding: binary" );
        if($content == '' ){
            readfile($filename);
        }else{
            echo($content);
        }
        exit();
    }
 
    /**
     * 采集远程文件
     * @access public
     * @param string $remote 远程文件名
     * @param string $local 本地保存文件名
     * @return mixed
     */
    static public function curlDownload($remote, $local) {
        $cp = curl_init($remote);
        $fp = fopen($local,"w");
        curl_setopt($cp, CURLOPT_FILE, $fp);
        curl_setopt($cp, CURLOPT_HEADER, 0);
        curl_exec($cp);
        curl_close($cp);
        fclose($fp);
    }
 
}

如果想更准确的Content-type类型 且 又版本不支持mime_content_type的话，请加入以下代码：

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//类定义结束
if( !function_exists ('mime_content_type')) {
    /**
     * 获取文件的mime_content类型
     * @return string
     */
    function mime_content_type($filename) {
        static $contentType = array(
            'ai'        => 'application/postscript',
            'aif'       => 'audio/x-aiff',
            'aifc'      => 'audio/x-aiff',
            'aiff'      => 'audio/x-aiff',
            'asc'       => 'application/pgp', //changed by skwashd - was text/plain
            'asf'       => 'video/x-ms-asf',
            'asx'       => 'video/x-ms-asf',
            'au'        => 'audio/basic',
            'avi'       => 'video/x-msvideo',
            'bcpio'     => 'application/x-bcpio',
            'bin'       => 'application/octet-stream',
            'bmp'       => 'image/bmp',
            'c'         => 'text/plain', // or 'text/x-csrc', //added by skwashd
            'cc'        => 'text/plain', // or 'text/x-c++src', //added by skwashd
            'cs'        => 'text/plain', //added by skwashd - for C# src
            'cpp'       => 'text/x-c++src', //added by skwashd
            'cxx'       => 'text/x-c++src', //added by skwashd
            'cdf'       => 'application/x-netcdf',
            'class'     => 'application/octet-stream',//secure but application/java-class is correct
            'com'       => 'application/octet-stream',//added by skwashd
            'cpio'      => 'application/x-cpio',
            'cpt'       => 'application/mac-compactpro',
            'csh'       => 'application/x-csh',
            'css'       => 'text/css',
            'csv'       => 'text/comma-separated-values',//added by skwashd
            'dcr'       => 'application/x-director',
            'diff'      => 'text/diff',
            'dir'       => 'application/x-director',
            'dll'       => 'application/octet-stream',
            'dms'       => 'application/octet-stream',
            'doc'       => 'application/msword',
            'dot'       => 'application/msword',//added by skwashd
            'dvi'       => 'application/x-dvi',
            'dxr'       => 'application/x-director',
            'eps'       => 'application/postscript',
            'etx'       => 'text/x-setext',
            'exe'       => 'application/octet-stream',
            'ez'        => 'application/andrew-inset',
            'gif'       => 'image/gif',
            'gtar'      => 'application/x-gtar',
            'gz'        => 'application/x-gzip',
            'h'         => 'text/plain', // or 'text/x-chdr',//added by skwashd
            'h++'       => 'text/plain', // or 'text/x-c++hdr', //added by skwashd
            'hh'        => 'text/plain', // or 'text/x-c++hdr', //added by skwashd
            'hpp'       => 'text/plain', // or 'text/x-c++hdr', //added by skwashd
            'hxx'       => 'text/plain', // or 'text/x-c++hdr', //added by skwashd
            'hdf'       => 'application/x-hdf',
            'hqx'       => 'application/mac-binhex40',
            'htm'       => 'text/html',
            'html'      => 'text/html',
            'ice'       => 'x-conference/x-cooltalk',
            'ics'       => 'text/calendar',
            'ief'       => 'image/ief',
            'ifb'       => 'text/calendar',
            'iges'      => 'model/iges',
            'igs'       => 'model/iges',
            'jar'       => 'application/x-jar', //added by skwashd - alternative mime type
            'java'      => 'text/x-java-source', //added by skwashd
            'jpe'       => 'image/jpeg',
            'jpeg'      => 'image/jpeg',
            'jpg'       => 'image/jpeg',
            'js'        => 'application/x-Javascript',
            'kar'       => 'audio/midi',
            'latex'     => 'application/x-latex',
            'lha'       => 'application/octet-stream',
            'log'       => 'text/plain',
            'lzh'       => 'application/octet-stream',
            'm3u'       => 'audio/x-mpegurl',
            'man'       => 'application/x-troff-man',
            'me'        => 'application/x-troff-me',
            'mesh'      => 'model/mesh',
            'mid'       => 'audio/midi',
            'midi'      => 'audio/midi',
            'mif'       => 'application/vnd.mif',
            'mov'       => 'video/quicktime',
            'movie'     => 'video/x-sgi-movie',
            'mp2'       => 'audio/mpeg',
            'mp3'       => 'audio/mpeg',
            'mpe'       => 'video/mpeg',
            'mpeg'      => 'video/mpeg',
            'mpg'       => 'video/mpeg',
            'mpga'      => 'audio/mpeg',
            'ms'        => 'application/x-troff-ms',
            'msh'       => 'model/mesh',
            'mxu'       => 'video/vnd.mpegurl',
            'nc'        => 'application/x-netcdf',
            'oda'       => 'application/oda',
            'patch'     => 'text/diff',
            'pbm'       => 'image/x-portable-bitmap',
            'pdb'       => 'chemical/x-pdb',
            'pdf'       => 'application/pdf',
            'pgm'       => 'image/x-portable-graymap',
            'pgn'       => 'application/x-chess-pgn',
            'pgp'       => 'application/pgp',//added by skwashd
            'php'       => 'application/x-httpd-php',
            'php3'      => 'application/x-httpd-php3',
            'pl'        => 'application/x-perl',
            'pm'        => 'application/x-perl',
            'png'       => 'image/png',
            'pnm'       => 'image/x-portable-anymap',
            'po'        => 'text/plain',
            'ppm'       => 'image/x-portable-pixmap',
            'ppt'       => 'application/vnd.ms-powerpoint',
            'ps'        => 'application/postscript',
            'qt'        => 'video/quicktime',
            'ra'        => 'audio/x-realaudio',
            'rar'       => 'application/octet-stream',
            'ram'       => 'audio/x-pn-realaudio',
            'ras'       => 'image/x-cmu-raster',
            'rgb'       => 'image/x-rgb',
            'rm'        => 'audio/x-pn-realaudio',
            'roff'      => 'application/x-troff',
            'rpm'       => 'audio/x-pn-realaudio-plugin',
            'rtf'       => 'text/rtf',
            'rtx'       => 'text/richtext',
            'sgm'       => 'text/sgml',
            'sgml'      => 'text/sgml',
            'sh'        => 'application/x-sh',
            'shar'      => 'application/x-shar',
            'shtml'     => 'text/html',
            'silo'      => 'model/mesh',
            'sit'       => 'application/x-stuffit',
            'skd'       => 'application/x-koan',
            'skm'       => 'application/x-koan',
            'skp'       => 'application/x-koan',
            'skt'       => 'application/x-koan',
            'smi'       => 'application/smil',
            'smil'      => 'application/smil',
            'snd'       => 'audio/basic',
            'so'        => 'application/octet-stream',
            'spl'       => 'application/x-futuresplash',
            'src'       => 'application/x-wais-source',
            'stc'       => 'application/vnd.sun.xml.calc.template',
            'std'       => 'application/vnd.sun.xml.draw.template',
            'sti'       => 'application/vnd.sun.xml.impress.template',
            'stw'       => 'application/vnd.sun.xml.writer.template',
            'sv4cpio'   => 'application/x-sv4cpio',
            'sv4crc'    => 'application/x-sv4crc',
            'swf'       => 'application/x-shockwave-flash',
            'sxc'       => 'application/vnd.sun.xml.calc',
            'sxd'       => 'application/vnd.sun.xml.draw',
            'sxg'       => 'application/vnd.sun.xml.writer.global',
            'sxi'       => 'application/vnd.sun.xml.impress',
            'sxm'       => 'application/vnd.sun.xml.math',
            'sxw'       => 'application/vnd.sun.xml.writer',
            't'         => 'application/x-troff',
            'tar'       => 'application/x-tar',
            'tcl'       => 'application/x-tcl',
            'tex'       => 'application/x-tex',
            'texi'      => 'application/x-texinfo',
            'texinfo'   => 'application/x-texinfo',
            'tgz'       => 'application/x-gtar',
            'tif'       => 'image/tiff',
            'tiff'      => 'image/tiff',
            'tr'        => 'application/x-troff',
            'tsv'       => 'text/tab-separated-values',
            'txt'       => 'text/plain',
            'ustar'     => 'application/x-ustar',
            'vbs'       => 'text/plain', //added by skwashd - for obvious reasons
            'vcd'       => 'application/x-cdlink',
            'vcf'       => 'text/x-vcard',
            'vcs'       => 'text/calendar',
            'vfb'       => 'text/calendar',
            'vrml'      => 'model/vrml',
            'vsd'       => 'application/vnd.visio',
            'wav'       => 'audio/x-wav',
            'wax'       => 'audio/x-ms-wax',
            'wbmp'      => 'image/vnd.wap.wbmp',
            'wbxml'     => 'application/vnd.wap.wbxml',
            'wm'        => 'video/x-ms-wm',
            'wma'       => 'audio/x-ms-wma',
            'wmd'       => 'application/x-ms-wmd',
            'wml'       => 'text/vnd.wap.wml',
            'wmlc'      => 'application/vnd.wap.wmlc',
            'wmls'      => 'text/vnd.wap.wmlscript',
            'wmlsc'     => 'application/vnd.wap.wmlscriptc',
            'wmv'       => 'video/x-ms-wmv',
            'wmx'       => 'video/x-ms-wmx',
            'wmz'       => 'application/x-ms-wmz',
            'wrl'       => 'model/vrml',
            'wvx'       => 'video/x-ms-wvx',
            'xbm'       => 'image/x-xbitmap',
            'xht'       => 'application/xhtml+xml',
            'xhtml'     => 'application/xhtml+xml',
            'xls'       => 'application/vnd.ms-excel',
            'xlt'       => 'application/vnd.ms-excel',
            'xml'       => 'application/xml',
            'xpm'       => 'image/x-xpixmap',
            'xsl'       => 'text/xml',
            'xwd'       => 'image/x-xwindowdump',
            'xyz'       => 'chemical/x-xyz',
            'z'         => 'application/x-compress',
            'zip'       => 'application/zip',
        );
        $type = strtolower(substr(strrchr($filename, '.'),1));
        if(isset($contentType[$type])) {
            $mime = $contentType[$type];
        }else {
            $mime = 'application/octet-stream';
        }
        return $mime;
    }
}


,

使用方法

下载文件

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HttpUtil::download("C:/Users/XQ/Desktop/1.jpg", "中文名字.jpg");

直接使用字符串作为文件下载

1
HttpUtil::download("", "1.txt", "写入文件里面的文字ABC123");




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