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PHP生成压缩文件开发实例

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Jun 06, 2016 pm 07:43 PM
php壓縮開發實例文件產生訂單需求

大概需求： 每一个订单都有多个文件附件，在下载的时候希望对当前订单的文件自动打包成一个压缩包下载 细节需求：当前订单号_年月日+时间.zip 例如： 1.生成压缩文件，压缩文件名格式： 2.压缩文件存放在根目录 /upload/zipfile/年月/自定义的压缩文件名.zip

大概需求：

每一个订单都有多个文件附件，在下载的时候希望对当前订单的文件自动打包成一个压缩包下载

细节需求：当前订单号_年月日+时间.zip  例如：

1.生成压缩文件，压缩文件名格式：

2.压缩文件存放在根目录 /upload/zipfile/年月/自定义的压缩文件名.zip

3.点击下载压缩包，系统开始对压缩文件打包，打包完成后自动开始下载

4.为了防止暴露压缩包文件路径，需要对下载的压缩包文件名改名

 

具体操作模式请见下面的代码：

文件路径：

压缩包文件存放路径：/upload/zipfile/

上传的附件存放路径：/upload/file/

1.基本配置文件文件 config.inc.php放在系统根目录

 

<span>define</span>('SYS_ROOT', <span>str_replace</span>("\\", '/', <span>dirname</span>(<span>__FILE__</span><span>)));
</span><span>define</span>('SYS_UPLOAD', SYS_ROOT.'/upload/file'<span>);
</span><span>define</span>('SYS_DOWNLOAD', SYS_ROOT.'/upload/zipfile'<span>);
</span><span>define</span>('SYS_WIN', <span>strpos</span>(<span>strtoupper</span>(<span>PHP_OS</span>), 'WIN') !== <span>false</span> ? <span>true</span>: <span>false</span><span>);
</span><span>define</span>('SYS_CHMOD', ('0777' && !SYS_WIN) ? '0777' : 0);

 

2.压缩包程序代码文件 getzip.php

<span>header</span>("Content-type: text/html; charset=utf-8"<span>);
</span><span>require_once</span> '../config.inc.php'; <span>//</span><span>载入配置路径配置文件</span>
<span>$arrfiles</span> = <span>array</span>(SYS_UPLOAD . '/1.jpg',<span>
    SYS_UPLOAD </span>. '/x.jpg',); <span>//</span><span>这里是附件的文件数组</span>
<span>$orderNum</span> = '888'; <span>//</span><span>订单号</span>
<span>$downFileName</span> = 'tieniu.zip'; <span>//</span><span>下载的文件名 如果为空那么就是系统自定义名称 如果指定就显示指定名字</span>
<span>$zipUrl</span> = create_zip(<span>$arrfiles</span>, <span>$orderNum</span>); <span>//</span><span>生成的压缩文件名词</span>
file_down(<span>$zipUrl</span>, <span>$downFileName</span>); <span>//</span><span>提供http下载，并可以进行重命名下载文件,建议重命名，防止路径猜解</span>

<span>/*</span><span>
 * 生成压缩包文件名
 * @param  [String] $orderNum 订单号
 * @return [String] 返回带有绝对路径的订单号的压缩文件名
 </span><span>*/</span>

<span>function</span> get_zipname(<span>$orderNum</span><span>) {
    </span><span>$zipName</span> = SYS_DOWNLOAD . '/' . <span>date</span>('Ym') . '/' . <span>$orderNum</span> . '_' . <span>date</span>("Ymd_Hi") . '.zip'<span>;
    </span><span>return</span> <span>$zipName</span><span>;
}

</span><span>/*</span><span>
 * 按照特定需求打包压缩包的目录结构设置
 </span><span>*/</span>

<span>function</span><span> pack_object() {
    
}

</span><span>/*</span><span>
 * 生成压缩包
 * @param  [Array] $arrfiles 带有绝对路径的文件数组
 * @param  [String] $orderNum 订单号
 * @return [String] 返回带有绝对路径的订单号的压缩文件名 如如果失败返回 FALSE
 </span><span>*/</span>

<span>function</span> create_zip(<span>$arrfiles</span>, <span>$orderNum</span><span>) {
    </span><span>$zipName</span> = get_zipname(<span>$orderNum</span>); <span>//</span><span>获得文件名</span>
    dir_create(<span>dirname</span>(<span>$zipName</span>)); <span>//</span><span>建立生成压缩文件的目录</span>
    <span>$zip</span> = <span>new</span><span> ZipArchive();
    </span><span>if</span> (<span>$zip</span>->open(<span>$zipName</span>, ZIPARCHIVE::CREATE) !== <span>TRUE</span><span>) {
        </span><span>return</span> <span>FALSE</span><span>;
    }
    </span><span>foreach</span> (<span>$arrfiles</span> <span>as</span> <span>$path</span><span>) {
        </span><span>if</span> (<span>is_file</span>(<span>$path</span>)) {<span>//</span><span>判断文件是否存在</span>
            <span>$zip</span>->addFile(<span>$path</span>, <span>basename</span>(<span>$path</span>)); <span>//</span><span>把文件加入到压缩包中</span>
<span>        }
    }
    </span><span>$zip</span>-><span>close();
    </span><span>return</span> <span>$zipName</span><span>;
}

</span><span>/*</span><span>
 * 处理文件目录
 * @param  [Array] $arrfiles 带有绝对路径的文件数组
 * @param  [String] $dirpath 文件路径
 * @return [String] 返回处理的文件路径，方便生成文件目录
 </span><span>*/</span>

<span>function</span> dir_path(<span>$dirpath</span><span>) {
    </span><span>$dirpath</span> = <span>str_replace</span>('\\', '/', <span>$dirpath</span><span>);
    </span><span>if</span> (<span>substr</span>(<span>$dirpath</span>, -1) != '/'<span>)
        </span><span>$dirpath</span> = <span>$dirpath</span> . '/'<span>;
    </span><span>return</span> <span>$dirpath</span><span>;
}

</span><span>/*</span><span>
 * 生成文件目录
 * @param  [String] $path 文件路径
 * @return [String] 返回生成的文件目录结构
 </span><span>*/</span>

<span>function</span> dir_create(<span>$path</span><span>) {
    </span><span>if</span> (<span>is_dir</span>(<span>$path</span><span>))
        </span><span>return</span> <span>true</span><span>;
    </span><span>$dir</span> = <span>str_replace</span>(SYS_DOWNLOAD . '/', '', <span>$path</span><span>);
    </span><span>$dir</span> = dir_path(<span>$dir</span><span>);
    </span><span>$temp</span> = <span>explode</span>('/', <span>$dir</span><span>);
    </span><span>$cur_dir</span> = SYS_DOWNLOAD . '/'<span>;
    </span><span>$max</span> = <span>count</span>(<span>$temp</span>) - 1<span>;
    </span><span>for</span> (<span>$i</span> = 0; <span>$i</span> $max; <span>$i</span>++<span>) {
        </span><span>$cur_dir</span> .= <span>$temp</span>[<span>$i</span>] . '/'<span>;
        </span><span>if</span> (<span>is_dir</span>(<span>$cur_dir</span><span>))
            </span><span>continue</span><span>;
        @</span><span>mkdir</span>(<span>$cur_dir</span><span>);
        </span><span>if</span><span> (SYS_CHMOD)
            @</span><span>chmod</span>(<span>$cur_dir</span>,<span> SYS_CHMOD);
        </span><span>if</span> (!<span>is_file</span>(<span>$cur_dir</span> . '/index.html') && !<span>is_file</span>(<span>$cur_dir</span> . '/index.php'<span>))
            file_copy(SYS_ROOT </span>. '/upload/index.html', <span>$cur_dir</span> . '/index.html'<span>);
    }

    </span><span>return</span> <span>is_dir</span>(<span>$path</span><span>);
}

</span><span>/*</span><span>
 * 文件COPY
 * @param  [String] $from copy源文件
 * @param  [String] $to copy文件目的地
 * @return [Bool]  成功 ture 失败 false
 </span><span>*/</span>

<span>function</span> file_copy(<span>$from</span>, <span>$to</span><span>) {
    dir_create(</span><span>dirname</span>(<span>$to</span><span>));
    </span><span>if</span> (<span>is_file</span>(<span>$to</span>) &&<span> SYS_CHMOD)
        @</span><span>chmod</span>(<span>$to</span>,<span> SYS_CHMOD);
    </span><span>if</span> (@<span>copy</span>(<span>$from</span>, <span>$to</span><span>)) {
        </span><span>if</span><span> (SYS_CHMOD)
            @</span><span>chmod</span>(<span>$to</span>,<span> SYS_CHMOD);
        </span><span>return</span> <span>true</span><span>;
    } </span><span>else</span><span> {
        </span><span>return</span> <span>false</span><span>;
    }
}

</span><span>/*</span><span>
 * 文件下载处理函数
 * @param  [String] $file 文件路径
 * @param  [String] $filename 下载时间重新命名的文件名
 * @param  [String] $data 下载文件填装的数据内容
 </span><span>*/</span>

<span>function</span> file_down(<span>$file</span>, <span>$filename</span> = '', <span>$data</span> = ''<span>) {
    </span><span>if</span> (!<span>$data</span> && !<span>is_file</span>(<span>$file</span><span>))
        </span><span>exit</span><span>;
    </span><span>$filename</span> = <span>$filename</span> ? <span>$filename</span> : <span>basename</span>(<span>$file</span><span>);
    </span><span>$filetype</span> = file_ext(<span>$filename</span><span>);
    </span><span>$filesize</span> = <span>$data</span> ? <span>strlen</span>(<span>$data</span>) : <span>filesize</span>(<span>$file</span><span>);
    </span><span>ob_end_clean</span><span>();
    @</span><span>set_time_limit</span>(0<span>);
    </span><span>if</span> (<span>strpos</span>(<span>$_SERVER</span>['HTTP_USER_AGENT'], 'MSIE') !== <span>false</span><span>) {
        </span><span>header</span>('Cache-Control: must-revalidate, post-check=0, pre-check=0'<span>);
        </span><span>header</span>('Pragma: public'<span>);
    } </span><span>else</span><span> {
        </span><span>header</span>('Pragma: no-cache'<span>);
    }
    </span><span>header</span>('Expires: ' . <span>gmdate</span>('D, d M Y H:i:s') . ' GMT'<span>);
    </span><span>header</span>('Content-Encoding: none'<span>);
    </span><span>header</span>('Content-Length: ' . <span>$filesize</span><span>);
    </span><span>header</span>('Content-Disposition: attachment; filename=' . <span>$filename</span><span>);
    </span><span>header</span>('Content-Type: ' . <span>$filetype</span><span>);
    </span><span>if</span> (<span>$data</span><span>) {
        </span><span>echo</span> <span>$data</span><span>;
    } </span><span>else</span><span> {
        </span><span>readfile</span>(<span>$file</span><span>);
    }
    </span><span>exit</span><span>;
}

</span><span>function</span> file_ext(<span>$filename</span><span>) {
    </span><span>return</span> <span>strtolower</span>(<span>trim</span>(<span>substr</span>(<span>strrchr</span>(<span>$filename</span>, '.'), 1<span>)));
}

</span><span>//</span><span>此函数未用到，用来做整个目录的打包下载</span>
<span>function</span> listdir(<span>$start_dir</span> = '.'<span>) {
    </span><span>$files</span> = <span>array</span><span>();
    </span><span>if</span> (<span>is_dir</span>(<span>$start_dir</span><span>)) {
        </span><span>$fh</span> = <span>opendir</span>(<span>$start_dir</span><span>);
        </span><span>while</span> ((<span>$file</span> = <span>readdir</span>(<span>$fh</span>)) !== <span>false</span><span>) {
            </span><span>if</span> (<span>strcmp</span>(<span>$file</span>, '.') == 0 || <span>strcmp</span>(<span>$file</span>, '..') == 0<span>)
                </span><span>continue</span><span>;
            </span><span>$filepath</span> = <span>$start_dir</span> . '/' . <span>$file</span><span>;
            </span><span>if</span> (<span>is_dir</span>(<span>$filepath</span><span>))
                </span><span>$files</span> = <span>array_merge</span>(<span>$files</span>, listdir(<span>$filepath</span><span>));
            </span><span>else</span>
                <span>array_push</span>(<span>$files</span>, <span>$filepath</span><span>);
        }
        </span><span>closedir</span>(<span>$fh</span><span>);
    } </span><span>else</span><span> {
        </span><span>$files</span> = <span>false</span><span>;
    }
    </span><span>return</span> <span>$files</span><span>;
}</span>

 

3.PHP程序生成压缩文件需要用到压缩类：ZipArchive

这个是php的扩展类，自php5.2版本以后就已经支持这个扩展，如果你在使用的时候出现错误，查看下php.ini里面的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。

 

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