php使用ZipArchive函数实现文件的压缩与解压缩
这篇文章主要介绍了php使用ZipArchive函数实现文件的压缩与解压缩,需要的朋友可以参考下
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,具体开启方法这里就不说了,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。这里整理一下利用php zipArchive进行文件的压缩与解压缩的常用的示例供参考。
一、解压缩zip文件
$zip=new ZipArchive;//新建一个ZipArchive的对象 if($zip->open('test.zip')===TRUE){ $zip->extractTo('images');//假设解压缩到在当前路径下images文件夹内 $zip->close();//关闭处理的zip文件 }
二、将文件压缩成zip文件
$zip=new ZipArchive; if($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
$zip=new ZipArchive; $res=$zip->open('test.zip',ZipArchive::CREATE); if($res===TRUE){ $zip->addFromString('test.txt','file content goes here'); $zip->close(); echo 'ok'; }else{ echo 'failed'; }
四、将文件夹打包成zip文件
function addFileToZip($path,$zip){ $handler=opendir($path); //打开当前文件夹由$path指定。 while(($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."http://www.jb51.net/".$filename)){// 如果读取的某个对象是文件夹,则递归 addFileToZip($path."http://www.jb51.net/".$filename, $zip); }else{ //将文件加入zip对象 $zip->addFile($path."http://www.jb51.net/".$filename); } } } @closedir($path); } $zip=new ZipArchive(); if($zip->open('images.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 }
以上就是php实现文件的压缩与解压缩的四种不同情况,可能还有其他情况没有补充完整,在之后的文章中陆续更新,希望这篇文章对大家的学习有所帮助。

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