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PHP自带ZIP压缩、解压缩类ZipArchiv使用指南

Jun 06, 2016 pm 08:08 PM
php compression

这篇文章主要介绍了PHP自带ZIP压缩、解压缩类ZipArchiv使用指南,十分详细,需要的朋友可以参考下

要使用该PHP扩展类,需要(PHP 5 >= 5.2.0, PECL zip >= 1.1.0),部分方法需要 PHP 5.2.+,,且php.ini配置支持zip
对于win系统,直接去掉php_zip.dll 扩展的注释,然后重启http服务(IIS或Apache)即可
Linux还没有试验,理论上差别不会很大

 功能:
1、解压缩zip文件
2、将文件压缩成zip文件
3、追加文件到zip文件
4、将文件夹打包成zip文件(需要循环添加文件与创建空文件夹)
5、删除压缩文件中的条目

--------------------- ZipArchive对象常用方法介绍 ---------------------

测试约定:
 测试文件为text.zip,该压缩文件包含了三个被压缩的文件(hello.txt、word.txt、ooxx.jpg),如下所示

复制代码 代码如下:


text.zip
     hello.txt
     word.txt
     ooxx.jpg

打开zip文件,以便进一步操作
ZipArchive::open
 (PHP 5 >= 5.2.0, PECL zip >= 1.1.0)
 mixed ZipArchive::open ( string $filename [, int $flags ] )

第2个参数讲解

ZIPARCHIVE::OVERWRITE    总是创建一个新的文件,如果指定的zip文件存在,则会覆盖掉
ZIPARCHIVE::CREATE        如果指定的zip文件不存在,则新建一个
ZIPARCHIVE::EXCL        如果指定的zip文件存在,则会报错   
ZIPARCHIVE::CHECKCONS

返回值: 

 如果返回值等于下面的属性,表示对应的错误 或者 返回TRUE
 $res == ZipArchive::ER_EXISTS    File already exists.(文件已经存在)
$res == ZipArchive::ER_INCONS    Zip archive inconsistent.(压缩文件不一致)
$res == ZipArchive::ER_INVAL    Invalid argument.(无效的参数)
$res == ZipArchive::ER_MEMORY    Malloc failure.(内存错误?这个不确定)
$res == ZipArchive::ER_NOENT    No such file.(没有这样的文件)
$res == ZipArchive::ER_NOZIP    Not a zip archive.(没有一个压缩文件)
$res == ZipArchive::ER_OPEN        Can't open file.(不能打开文件)
$res == ZipArchive::ER_READ        Read error.(读取错误)
$res == ZipArchive::ER_SEEK        Seek error.(查找错误)

复制代码 代码如下:


 $zip = new ZipArchive;
 $res = $zip->open('test.zip');
 if ($res === TRUE) {
     echo 'ok';
     //解压缩到test文件夹
    $zip->extractTo('test');
     $zip->close();
 } else {
     echo 'failed, code:' . $res;
 }
 ?>

根据压缩文件内的列表索引,返回被压缩文件的名称

ZipArchive::getNameIndex
 string ZipArchive::getNameIndex ( int $index [, int $flags ] )

复制代码 代码如下:


   $zip = new ZipArchive();
 $res = $zip->open('test.zip');
 if ($res === TRUE) {
     var_dump($zip->getNameIndex(0)); // hello.txt
     var_dump($zip->getNameIndex(1)); // word.txt
     var_dump($zip->getNameIndex(2)); // ooxx.jpg
 } else {
     echo 'failed, code:' . $res;
 }
 $zip->close();
 ?>

根据压缩内的文件名称,获取该文件的文本流

ZipArchive::getStream
 resource ZipArchive::getStream ( string $name )

复制代码 代码如下:


   $zip = new ZipArchive();
 $res = $zip->open('test.zip');
 if ($res === TRUE) {
     $stream = $zip->getStream('hello.txt');
 } else {
     echo 'failed, code:' . $res;
 }
 $zip->close();
 $str = stream_get_contents($stream); //这里注意获取到的文本编码
var_dump($str);
 ?>

根据压缩文件内的索引(从0开始)修改压缩文件内的文件名

ZipArchive::renameIndex
 bool ZipArchive::renameIndex ( int $index , string $newname )
 (PHP 5 >= 5.2.0, PECL zip >= 1.5.0)

成功时返回 TRUE, 或者在失败时返回 FALSE。

复制代码 代码如下:


 $zip = new ZipArchive;
 $res = $zip->open('test.zip');
 if ($res === TRUE) {
     //把压缩文件内第一个文件修改成newname.txt
     $zip->renameIndex(0,'newname.txt');
     $zip->close();
 } else {
     echo 'failed, code:' . $res;
 }
 ?>

根据压缩文件内的文件名,修改压缩文件内的文件名

ZipArchive::renameName
 (PHP 5 >= 5.2.0, PECL zip >= 1.5.0)

复制代码 代码如下:

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