php 在web端读出pdf 下载
<?php // 表示调用文本类型为pdf的应用 header(‘Content-type: application/pdf‘); // 这句可以输出下载页面进行下载 header(‘Content-Disposition: attachment; filename="downloaded.pdf"‘); // 能够读出pdf readfile(‘original.pdf‘); ?>
实现各种文件的下载方法:
<?php $file="N1.PDF"; downloadFile($file); function downloadFile( $fullPath ){ // Must be fresh start if( headers_sent() ) die(‘Headers Sent‘); // Required for some browsers if(ini_get(‘zlib.output_compression‘)) ini_set(‘zlib.output_compression‘, ‘Off‘); // File Exists? if( file_exists($fullPath) ){ // Parse Info / Get Extension $fsize = filesize($fullPath); $path_parts = pathinfo($fullPath); $ext = strtolower($path_parts["extension"]); // Determine Content Type switch ($ext) { case "pdf": $ctype="application/pdf"; break; case "exe": $ctype="application/octet-stream"; break; case "zip": $ctype="application/zip"; break; case "doc": $ctype="application/msword"; break; case "xls": $ctype="application/vnd.ms-excel"; break; case "ppt": $ctype="application/vnd.ms-powerpoint"; break; case "gif": $ctype="image/gif"; break; case "png": $ctype="image/png"; break; case "jpeg": case "jpg": $ctype="image/jpg"; break; default: $ctype="application/force-download"; } header("Pragma: public"); // required header("Expires: 0"); header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); header("Cache-Control: private",false); // required for certain browsers header("Content-Type: $ctype"); header("Content-Disposition: attachment; filename=\"".basename($fullPath)."\";" ); header("Content-Transfer-Encoding: binary"); header("Content-Length: ".$fsize); ob_clean(); flush(); readfile( $fullPath ); } else die(‘File Not Found‘); } ?>
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