PHP ZipArchive 是PHP自带的扩展类,可以轻松实现ZIP文件的压缩和解压,使用前首先要确保PHP ZIP 扩展已经开启,具体开启方法就不说了,不同的平台开启PHP扩增的方法网上都有,如有疑问欢迎交流。这里整理一下常用的示例供参考。
一、ZipArchive方法如下:
- 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::addGlob — Add files from a directory by glob pattern
- ZipArchive::addPattern — Add files from a directory by PCRE pattern
- 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::extractTo — 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::getExternalAttributesIndex — Retrieve the external attributes of an entry defined by its index
- ZipArchive::getExternalAttributesName — Retrieve the external attributes of an entry defined by its 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::setExternalAttributesIndex — Set the external attributes of an entry defined by its index
- ZipArchive::setExternalAttributesName — Set the external attributes 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.
二、解压缩zip文件
/** * 通过ZipArchive的对象处理zip文件 * $zip->open这个方法的参数表示处理的zip文件名。 * 如果对zip文件对象操作成功,$zip->open这个方法会返回TRUE */ $zip = new ZipArchive; // 新建一个ZipArchive的对象 if ($zip->open('test.zip') === TRUE) { $zip->extractTo('images'); // 假设解压缩到在当前路径下images文件夹的子文件夹 $zip->close(); // 关闭处理的zip文件 }
三、将文件压缩成zip文件
/** * $zip->open这个方法第一个参数表示处理的zip文件名。 * 第二个参数表示处理模式,ZipArchive::OVERWRITE表示如果zip文件存在,就覆盖掉原来的zip文件。 * 如果参数使用ZIPARCHIVE::CREATE,系统就会往原来的zip文件里添加内容。 * 如果不是为了多次添加内容到zip文件,建议使用ZipArchive::OVERWRITE。 * 使用这两个参数,如果zip文件不存在,系统都会自动新建。 * 如果对zip文件对象操作成功,$zip->open这个方法会返回TRUE */ $zip = new ZipArchive; // 新建一个ZipArchive的对象 if ($zip->open('test.zip', ZipArchive::OVERWRITE) === TRUE) { $zip->addFile('image.txt'); // 假设加入的文件名是image.txt,在当前路径下 $zip->close(); }
四、追加文件到zip文件
$zip = new ZipArchive; // 新建一个ZipArchive的对象 if ($zip->open('test.zip', ZipArchive::CREATE) === TRUE) { $zip->addFromString('test.txt', 'file content goes here'); // 假设追加的文件名是test.txt,在当前路径下 $zip->close(); }
五、将文件夹打包成zip文件
function addFileToZip($path, $zip) { $handler = opendir($path); // 打开当前文件夹由$path指定。 /** * 循环的读取文件夹下的所有文件和文件夹 * 其中$filename = readdir($handler)是每次循环的时候将读取的文件名赋值给$filename, * 为了不陷于死循环,所以还要让$filename !== false。 * 一定要用!==,因为如果某个文件名如果叫'0',或者某些被系统认为是代表false,用!=就会停止循环 */ while (($filename = readdir($handler)) !== false) { if ($filename != "." && $filename != "..") { // 文件夹文件名字为'.'和‘..’,不要对他们进行操作 if (is_dir($path . "/" . $filename)) { // 如果读取的某个对象是文件夹,则递归 addFileToZip($path . "/" . $filename, $zip); } else { // 将文件加入zip对象 $zip->addFile($path . "/" . $filename); } } } @closedir($path); } $zip = new ZipArchive(); if ($zip->open('test.zip', ZipArchive::OVERWRITE) === TRUE) { addFileToZip('images', $zip); // 调用方法,对要打包的根目录进行操作,并将ZipArchive的对象传递给方法 $zip->close(); // 关闭处理的zip文件 }