ThinkPHP package local files into zip files for download

First, put the FileToZip. class file in the ThinkPHP/Extend/Library/ORG/Util/folder, and FileToZip. class. php is the zip download class. The detailed code is as follows:

<? Php/*** zip download class file * traversal directory, packaged into zip format */class traverseDir {public $ currentdir; // current directory public $ filename; // file name public $ fileinfo; // used to save all file names and directory names in the current directory and the file size public $ savepath; public function _ construct ($ curpath, $ savepath) {$ this-> currentdir = $ curpath; // returns the current directory $ this-> savepath = $ savepath; // return to the current directory} // traverse the public function scandir ($ filepath) {if (is_dir ($ filepath) {$ arr = scandir ($ filepath ); foreach ($ arr as $ k = >$ V) {$ this-> fileinfo [$ v] [] = $ this-> getfilesize ($ v );}} else {echo "<script> alert ('the current directory is not a valid directory'); </script> ";}} /*** return file size ** @ param string $ filename file name * @ return file size (KB) */public function getfilesize ($ fname) {return filesize ($ fname) /1024;}/*** compressed file (zip Format) */public function tozip ($ items) {$ zip = new ZipArchive (); $ zipname = date ('ymdhis ', time (); if (! File_exists ($ zipname) {$ zip-> open(inclusavepath.20.zipname.'.zip ', ZipArchive: OVERWRITE); // create an empty zip file for ($ I = 0; $ I <count ($ items); $ I ++) {$ zip-> addFile ($ this-> currentdir. '/'. $ items [$ I], $ items [$ I]);} $ zip-> close (); $ dw = new download(+zipname.'.zip ', $ savepath ); // download the file $ dw-> getfiles (); unlink(~savepath.20.zipname.'.zip '); // delete the file after the download is complete}/*** download file **/class download {protected $ _ filename; protected $ _ filepa Th; protected $ _ filesize; // file size protected $ savepath; // file size public function _ construct ($ filename, $ savepath) {$ this-> _ filename = $ filename; $ this-> _ filepath = $ savepath. $ filename;} // get the file name public function getfilename () {return $ this-> _ filename;} // get the file path (including the file name) public function getfilepath () {return $ this-> _ filepath;} // obtain the file size. public function getfilesize () {return $ this-> _ filesize = number_format (files Ize ($ this-> _ filepath)/(1024*1024), 2); // remove two digits after the decimal point} // public function getfiles () {// check whether the file exists if (file_exists ($ this-> _ filepath) {// open the file $ file = fopen ($ this-> _ filepath, "r"); // returned file type Header ("Content-type: application/octet-stream"); // return Header ("Accept-Ranges: bytes "); // The Header (" Accept-Length :". filesize ($ this-> _ filepath); // the pop-up dialog box for the client, the corresponding file name Header ("Content-Disposition: atta Chment; filename = ". $ this-> _ filename); // before modification, transmit data to the client echo fread ($ file, filesize ($ this-> _ filepath) at a time )); // after modification, only 1024 bytes of data are transmitted at a time to the client // send back data to the client $ buffer = 1024; /// determine whether the file has been read while (! Feof ($ file) {// read the file into the memory $ file_data = fread ($ file, $ buffer ); // 1024 bytes of data echo $ file_data;} fclose ($ file);} else {echo "<script> alert ('sorry, the file you want to download does not exist '); </script> ";}}}

The code for loading and downloading a zip file in ThinkPHP is as follows:

Import ('org. util. fileToZip '); // introduce the zip download class file FileToZip // package and download $ handler = opendir ($ cur_file); // $ cur_file file directory $ download_file = array (); $ I = 0; while ($ filename = readdir ($ handler ))! = False) {if ($ filename! = '.' & $ Filename! = '.. ') {$ Download_file [$ I ++] = $ filename;} closedir ($ handler); $ scandir = new traverseDir ($ cur_file, $ save_path ); // $ save_path zip package file directory $ scandir-> tozip ($ download_file );