office(doc xls txt pdf ppt)文档预览及转换(office2pdf) - PHP版

最近项目想用到"文档在线预览",参考了一下使用将各类文档转为PDF

本想用OpenOffice的类, 但OpenOffice的类太复杂了..

后来想到了Aspose,

Google docs(谷歌文档)也是用的这个商业解决方案..

当然还有PSVIEW大家有兴趣研究下..是开源的

但是在偷窃的心理作用下..决定利用了下Google的优良服务.

演示地址: /

以下为源代码(仅供参考..切莫用于商业用途..后台自负)

<?php/** 这个类的主要作用是从Google文档上下载回文件..没有什么正式的API..所以..琰`Google改了.这也要改* 使用的时候请注意改一下HOSTS文件....因为国内服务器都没办法访问Google Docs的.* 加入如下两条记录,在服务器HOSTS文件(所以..国内虚拟主机没办法了)* 203.208.45.* 74.125.31.132 doc-08-c8-* * by wc1217 Time: -03-09 13:11:31*/class google_docs{private $viewerInfo = null;//private $decorate = '_';function __construct(){require_once 'curl_multi_class.php';}/** 得到Google Viewer转换之后的信息* $url* $retArray 应返回的键名*/private function getUrlViewerInfo($url, $retArray = array()){$multi = new curl_multi();$multi->setUrlList(array('/viewer?url=' . urlencode($url) . '&embedded=true&mobile=true'));//$multi->setOpt(array('CURLOPT_HEADER'=>1));$content = $multi->exec();$out = array();preg_match('/\{svUrl:\\\'\?url\\\\75(https?:\/\/.*?)\\\',biUrl:\\\'\?url\\\\75(https?:\/\/.*?)\\\',chanId:\\\'(.*?)\\\',gpUrl:\\\'(https?:\/\/.*?)\\\',docId:\\\'(.*?)\\\',numPages:(\d+),gtUrl:\\\'\?url\\\\75(https?:\/\/.*?)\\\',thWidth:(\d+),dlUrl:\\\'(.*?)\\\',thHeight:(.*?)\}/', $content[0], $out);if(empty($out) || count($out) != 11){trigger_error('没有应有的得到响应值!', E_USER_ERROR);}else{array_shift($out);$allArray = array_combine(array('svUrl', 'biUrl', 'chanId', 'gpUrl', 'docId', 'numPages', 'gtUrl', 'thWidth', 'dlUrl', 'thHeight'), $out); //合并键值//返回指定键值return empty($retArray) || !is_array($retArray) ? $allArray : array_intersect_key($allArray, array_flip($retArray));}}/** 转化八进制URL*/private function transFormUrl($url){return preg_replace('/\\\\(\d{2,3})/e', 'chr(ord("\\\$1"))', $url);}/** 转换成Png图片* $url type biUrl* $page number* @retrun array pngByte*/private function getUrlToPng($url, $page, $width = '1000'){$urlList = array();for($i = 1; $i <= $page; $i++){$urlList[] = $this->transFormUrl("/viewer?url={$url}&pagenumber={$i}&w={$width}");}$multi = new curl_multi();$multi->setUrlList($urlList);return $multi->exec();}/** 先得到文件信息*/function setUrlViewerInfo($url, $retArray = array('biUrl', 'numPages')){if(empty($url))trigger_error('$url can not be empty!', E_USER_ERROR);else$this->viewerInfo = $this->getUrlViewerInfo($url, $retArray);}/** 返回的Png的Byte保存至文件* $filePrefix 文件前缀* $numPages 要几页?*/function byteToPngFile($filePrefix = '', $numPages = 0){if(empty($this->viewerInfo))trigger_error('Please call setUrlViewerInfo() before runing!', E_USER_ERROR);else$biUrl = $this->viewerInfo;$pngByte = $this->getUrlToPng($biUrl['biUrl'], empty($numPages) ? $biUrl['numPages'] : $numPages);$succeed = array();foreach($pngByte as $key => $value){$succeed[] = file_put_contents($filePrefix . (sprintf("%02d", $key + 1)) . '.png', $value);}return $succeed;}/** 转换成PDF输出*/function viewerToPdfFile($filePrefix = ''){if(empty($this->viewerInfo))trigger_error('Please call setUrlViewerInfo() before runing!', E_USER_ERROR);else$gpUrl = $this->viewerInfo;$url = $this->transFormUrl($gpUrl['gpUrl']);$multi = new curl_multi();$multi->setOpt(array(/* 'CURLOPT_FOLLOWLOCATION' => 0,'CURLOPT_MAXREDIRS'=>3, */'CURLOPT_HEADER' => 1));$multi->setUrlList(array($url));$urlHeader = $this->transFormHeader($multi->exec()); //第一次..//得到cookie 还有location$cookie = explode(';', $urlHeader['Set-Cookie']); //Set-Cookie: $location = $urlHeader['Location']; //Location: //exit($cookie[0]);//$multi->setOpt(array('CURLOPT_COOKIE' => $cookie[0], 'CURLOPT_HEADER' => 1));$multi->setUrlList(array($location));$urlHeader = $this->transFormHeader($multi->exec()); //第二次$location = $urlHeader['Location']; //Location: $multi->setOpt(array('CURLOPT_COOKIE' => $cookie[0], 'CURLOPT_HEADER' => 0)); //第三次..加上cookie$multi->setUrlList(array($location));$bytePdf = $multi->exec();if(!empty($bytePdf[0]))return file_put_contents($filePrefix . 'pdf.pdf', $bytePdf);}/** 转化Header为数组格式*/private function transFormHeader($str){$headerArray = array();if(is_array($str))$str = $str[0];if(!empty($str) && strpos($str, "\n") !== false)foreach(explode("\n", $str) as $v){if(strpos($v, ': ') !== false){$t = explode(': ', $v);if(count($t) == 2)$headerArray[$t[0]] = $t[1];}}return $headerArray;}/** 得到文件信息,并写入文件* (不完全功能)有待XML解析*/function viewerToTextFile($filePrefix = ''){if(empty($this->viewerInfo))trigger_error('Please call setUrlViewerInfo() before runing!', E_USER_ERROR);else$gtUrl = $this->viewerInfo;$url = '/viewer?url=' . $this->transFormUrl($gtUrl['gtUrl']);$multi = new curl_multi();$multi->setUrlList(array($url));return file_put_contents($filePrefix . 'text.txt', $multi->exec());}}

curl_multi的类.请引用curl_multi_class.php文件

文件来自本人上一篇文章/wc1217/article/details/7332852

以下是测试文件index.php

<?phprequire_once 'google_docs_viewer.php';$docs = new google_docs();$docs->setUrlViewerInfo('http://infolab.stanford.edu/pub/papers/google.pdf', null);echo $docs->viewerToPdfFile('10123_')."\n";echo $docs->viewerToTextFile('10123_')."\n";print_r($docs->byteToPngFile('10123_'));