This class can download and extract a zip file from a remote site.
It can take a given URL of a remote site and download a ZIP file from there.
The class can also extract a ZIP file to a given local directory.
Details
{startverticalbanner}
The Urluploadunzip class is a free software distributed under the open source GNU licence.You can use it and modify it for your own or commercial use but please dont remove our credits.Despite its name,it does not deal with zip files alone.For example you can use it to upload an image by calling the url uploader funtion alone or maybe if you want to unzip an existing achieve you can just call the unzip file alone. For basic usage,you can view the example given.
| Classes of Trev Tune | > | Download ZIP from URL | > | > | > | > |
|
| Groups | Applications |
| Applications that use this package |
No pages of applications that use this class were specified.
PHP provides ZipArchive Class which allows us to create a Zip file. This class makes file creation easier. Programmatically Zip creation is mainly required when preparing the group of files and folders for downloading.
In the example, I am creating a function that will read all files and folders from the specified directory and add them to the ZipArchive class object.
Contents
- HTML
- PHP
- CSS
- Demo
- Conclusion
1. HTML
Creating a <form> which have two button elements, one for Create Zip and another for Download.
Completed Code
<div class='container'> <h2>Create and Download Zip file using PHP</h2> <form method='post' action=''> <input type='submit' name='create' value='Create Zip' /> <input type='submit' name='download' value='Download' /> </form> </div>I have created includes folder within the project where I stored some files and folders.
Create Zip
Create ZipArchive Class object for Zip file creation. Define a function createZip() to read files and directory from the specified directory path.
If file
If the reading value is the file then add it to zip object using addFile() method.
If directory
If the value is a directory then create an empty directory and call createZip() function where pass the directory path.
Download Zip
Check if the zip file exists or not. If it exists then download and remove it from the server.
Completed Code
<?php // Create ZIP file if(isset($_POST['create'])){ $zip = new ZipArchive(); $filename = "./myzipfile.zip"; if ($zip->open($filename, ZipArchive::CREATE)!==TRUE) { exit("cannot open <$filename>\n"); } $dir = 'includes/'; // Create zip createZip($zip,$dir); $zip->close(); } // Create zip function createZip($zip,$dir){ if (is_dir($dir)){ if ($dh = opendir($dir)){ while (($file = readdir($dh)) !== false){ // If file if (is_file($dir.$file)) { if($file != '' && $file != '.' && $file != '..'){ $zip->addFile($dir.$file); } }else{ // If directory if(is_dir($dir.$file) ){ if($file != '' && $file != '.' && $file != '..'){ // Add empty directory $zip->addEmptyDir($dir.$file); $folder = $dir.$file.'/'; // Read data of the folder createZip($zip,$folder); } } } } closedir($dh); } } } // Download Created Zip file if(isset($_POST['download'])){ $filename = "myzipfile.zip"; if (file_exists($filename)) { header('Content-Type: application/zip'); header('Content-Disposition: attachment; filename="'.basename($filename).'"'); header('Content-Length: ' . filesize($filename)); flush(); readfile($filename); // delete file unlink($filename); } } ?>3. CSS
.container{ margin: 0 auto; width: 50%; text-align: center; } input[type=submit]{ border: 0px; padding: 7px 15px; font-size: 16px; background-color: #00a1a1; color: white; font-weight: bold; }4. Demo
View Demo
5. Conclusion
The above-defined function createZip() accepts the path of the directory as a parameter. It will read all files and folders from the path and add them to the zip file.
You can also use ZipArchive Class to unzip the Zip file.
If you found this tutorial helpful then don't forget to share.