PHPZipArchive implements compression and decompression of Zip files

: This article describes how to compress and decompress a Zip file using PHPZipArchive. For more information about PHP tutorials, see. PHP ZipArchive is a PHP Extension class that can easily compress and decompress ZIP files. before using it, make sure that the php zip extension is enabled, methods for enabling PHP amplification on different platforms are available online. if you have any questions, please contact us. Here we will sort out common examples for your reference.

I. decompress the zip file

$ Zip = new ZipArchive; // Create a ZipArchive object/* process the zip file through the ZipArchive object $ zip-> the parameter of the open method indicates the zip file name to be processed. If the operation on the zip file object is successful, $ zip-> open returns TRUE */if ($ zip-> open('test.zip ') === TRUE) {$ zip-> extracloud ('images'); // suppose you extract the package to the subfolders of the images folder in the current path: php $ zip-> close (); // Close the processed zip file}

2. compress the file into a zip file

$ Zip = new ZipArchive;/* $ zip-> the first parameter of the open method indicates the zip file name to be processed. The second parameter indicates the processing mode. ZipArchive: OVERWRITE indicates that if the zip file exists, the original zip file will be overwritten. If the parameter uses ZIPARCHIVE: CREATE, the system will add content to the original zip file. If you do not want to add content to the zip file multiple times, we recommend that you use ZipArchive: OVERWRITE. If the zip file does not exist, the system automatically creates a new one. If the operation on the zip file object is successful, $ zip-> open returns TRUE */if ($ zip-> open('test.zip ', ZipArchive: OVERWRITE) === TRUE) {$ zip-> addFile('image.txt '); // The hypothetical file name is image.txt. in the current path, $ zip-> close ();}

3. add the content appended to the zip file

$zip = new ZipArchive;$res = $zip->open('test.zip', ZipArchive::CREATE);if ($res === TRUE) {$zip->addFromString('test.txt', 'file content goes here');$zip->close();echo 'ok';} else {echo 'failed';}

4. package folders into zip files

Function addFileToZip ($ path, $ zip) {$ handler = opendir ($ path); // specify $ path to open the current folder. /* Cyclically read all the files and folders in the folder. $ filename = readdir ($ handler) assigns a value to $ filename for each loop, to avoid getting stuck in an endless loop, you need to make $ filename! = False. Be sure to use it! =, Because if the name of a file is '0' or is regarded as false by the system, use! = Will stop the loop */while ($ filename = readdir ($ handler ))! = False) {if ($ filename! = "." & $ Filename! = ".. ") {// The folder name is '. 'and '.. ', do not operate on them if (is_dir ($ path. "/". $ filename) {// recursive addFileToZip ($ path. "/". $ filename, $ zip);} else {// add the file to the zip object $ zip-> addFile ($ path. "/". $ filename) ;}}@ closedir ($ path) ;}$ zip = new ZipArchive (); if ($ zip-> open('images.zip ', ZipArchive: OVERWRITE) === TRUE) {addFileToZip ('images/', $ zip); // call the method to operate the root directory to be packaged, and pass the ZipArchive object to the method $ zip-> close (); // close the processed zip file}

The ZipArchive method is as follows:

ZipArchive: addEmptyDir-Add a new directory

ZipArchive: addFile-Adds a file to a ZIP archive from the given path

ZipArchive: addFromString-Add a file to a ZIP archive using its contents

ZipArchive: close-Close the active archive (opened or newly created)

ZipArchive: deleteIndex-delete an entry in the archive using its index

ZipArchive: deleteName-delete an entry in the archive using its name

ZipArchive: extracemedi-extract the archive contents

ZipArchive: getArchiveComment-Returns the Zip archive comment

ZipArchive: getCommentIndex-Returns the comment of an entry using the entry index

ZipArchive: getCommentName-Returns the comment of an entry using the entry name

ZipArchive: getFromIndex-Returns the entry contents using its index

ZipArchive: getFromName-Returns the entry contents using its name

ZipArchive: getNameIndex-Returns the name of an entry using its index

ZipArchive: getStatusString-Returns the status error message, system and/or zip messages

ZipArchive: getStream-Get a file handler to the entry defined by its name (read only ).

ZipArchive: locateName-Returns the index of the entry in the archive

ZipArchive: open-Open a ZIP file archive

ZipArchive: renameIndex-Renames an entry defined by its index

ZipArchive: renameName-Renames an entry defined by its name

ZipArchive: setArchiveComment-Set the comment of a ZIP archive

ZipArchive: setCommentIndex-Set the comment of an entry defined by its index

ZipArchive: setCommentName-Set the comment of an entry defined by its name

ZipArchive: statIndex-Get the details of an entry defined by its index.

ZipArchive: statName-Get the details of an entry defined by its name.

ZipArchive: unchangeAll-Undo all changes done in the archive

ZipArchive: unchangeArchive-Revert all global changes done in the archive.

ZipArchive: unchangeIndex-Revert all changes done to an entry at the given index

ZipArchive: unchangeName-Revert all changes done to an entry with the given name.

The above introduces PHP ZipArchive to implement compressed and decompressed Zip files, including some content, hope to be helpful to friends who are interested in PHP tutorials.