PHP ZipArchive 實現壓縮解壓Zip檔案

PHP ZipArchive 是PHP內建的擴充類，可以輕鬆實現ZIP檔案的壓縮和解壓，使用前首先要確保PHP ZIP 擴充已經開啟，具體開啟方法就不說了，不同的平台開啟PHP擴增的方法網上都有，如有疑問歡迎交流。這裡整理一下常用的樣本供參考。

一、解壓縮zip檔案

$zip = new ZipArchive;//建立一個ZipArchive的對象/*通過ZipArchive的對象處理zip檔案$zip->open這個方法的參數表示處理的zip檔案名稱。如果對zip檔案對象操作成功，$zip->open這個方法會返回TRUE*/if ($zip->open('test.zip') === TRUE){$zip->extractTo('images');//假設解壓縮到在當前路徑下images檔案夾的子檔案夾php$zip->close();//關閉處理的zip檔案}

二、將檔案壓縮成zip檔案

$zip = new ZipArchive;/*$zip->open這個方法第一個參數表示處理的zip檔案名稱。第二個參數表示處理模式，ZipArchive::OVERWRITE表示如果zip檔案存在，就覆蓋掉原來的zip檔案。如果參數使用ZIPARCHIVE::CREATE，系統就會往原來的zip檔案裡新增內容。如果不是為了多次新增內容到zip檔案，建議使用ZipArchive::OVERWRITE。使用這兩個參數，如果zip檔案不存在，系統都會自動建立。如果對zip檔案對象操作成功，$zip->open這個方法會返回TRUE*/if ($zip->open('test.zip', ZipArchive::OVERWRITE) === TRUE){$zip->addFile('image.txt');//假設加入的檔案名稱是image.txt，在當前路徑下$zip->close();}

三、檔案追加內容添加到zip檔案

$zip = new ZipArchive;$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';}

四、將檔案夾打包成zip檔案

function addFileToZip($path, $zip) {$handler = opendir($path); //開啟當前檔案夾由$path指定。/*迴圈的讀取檔案夾下的所有檔案和檔案夾其中$filename = readdir($handler)是每次迴圈的時候將讀取的檔案名稱賦值給$filename，為了不陷於死迴圈，所以還要讓$filename !== false。一定要用!==，因為如果某個檔案名稱如果叫'0'，或者某些被系統認為是代表false，用!=就會停止迴圈*/while (($filename = readdir($handler)) !== false) {if ($filename != "." && $filename != "..") {//檔案夾檔案名稱字為'.'和‘..’，不要對他們進行操作if (is_dir($path . "/" . $filename)) {// 如果讀取的某個對象是檔案夾，則遞迴addFileToZip($path . "/" . $filename, $zip);} else { //將檔案加入zip對象$zip->addFile($path . "/" . $filename);}}}@closedir($path);}$zip = new ZipArchive();if ($zip->open('images.zip', ZipArchive::OVERWRITE) === TRUE) {addFileToZip('images/', $zip); //調用方法，對要打包的根目錄進行操作，並將ZipArchive的對象傳遞給方法$zip->close(); //關閉處理的zip檔案}

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::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::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.

以上就介紹了PHP ZipArchive 實現壓縮解壓Zip檔案，包括了方面的內容，希望對PHP教程有興趣的朋友有所協助。

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