php ZipArchive类使用实例详解
php ZipArchive可以说是php自带的一个函数了,他可对对文件进行压缩与解压缩处理,但是使用此类之前我们必须在php.ini中把extension=php_zip.dll前面的分号有没有去掉,然后再重启Apache这样才能使用这个类库。
ziparchive 可选参数
1.ZipArchive::addEmptyDir
添加一个新的文件目录
2.ZipArchive::addFile
将文件添加到指定zip压缩包中。
3.ZipArchive::addFromString
添加的文件同时将内容添加进去
4.ZipArchive::close
关闭ziparchive
5.ZipArchive::extractTo
将压缩包解压
6.ZipArchive::open
打开一个zip压缩包
7.ZipArchive::getStatusString
返回压缩时的状态内容,包括错误信息,压缩信息等等
8.ZipArchive::deleteIndex
删除压缩包中的某一个文件,如:deleteIndex(0)删除第一个文件
9.ZipArchive::deleteName
删除压缩包中的某一个文件名称,同时也将文件删除。
......
*/
实例
一、解压缩zip文件
代码如下 | 复制代码 |
$zip = new ZipArchive;//新建一个ZipArchive的对象 /* 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 */ 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php $zip->close();//关闭处理的zip文件 } |
二、将文件压缩成zip文件
代码如下 | 复制代码 |
$zip = new ZipArchive; /* $zip->open这个方法第一个参数表示处理的zip文件名。 第二个参数表示处理模式,ZipArchive::OVERWRITE表示如果zip文件存在,就覆盖掉原来的zip文件。 如果参数使用ZIPARCHIVE::CREATE,系统就会往原来的zip文件里添加内容。 如果不是为了多次添加内容到zip文件,建议使用ZipArchive::OVERWRITE。 使用这两个参数,如果zip文件不存在,系统都会自动新建。 如果对zip文件对象操作成功,$zip->open这个方法会返回TRUE */ 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(); } |
三、文件追加内容添加到zip文件
代码如下 | 复制代码 |
$zip = new ZipArchive; $res = $zip->open('test.zip', ZipArchive::CREATE); if ($res === TRUE) { $zip->addFromString('test.txt', 'file content goes here'); $zip->close(); echo 'ok'; } else { echo 'failed'; } |
四、将文件夹打包成zip文件
代码如下 | 复制代码 |
function addFileToZip($path, $zip) { $zip = new ZipArchive(); |
如果只知道文件名,而不知到文件的具体路径,可以搜索指定文件名的索引,再依靠索引获取内容。
代码如下 | 复制代码 |
|
上面获取索引依靠 locateName方法,如果压缩包内多个路径下有同名文件,好像只能返回第一个的索引,如果要获取所有同名文件的索引,只能使用笨办法,循环搜索。
代码如下 | 复制代码 |
$zip = new ZipArchive; |

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