PHP讀取doc docx xls pdf txt內容
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我的一個客戶有這樣的需求:上傳檔案,可以是doc,docx,xls,pdf,txt格式,現需要用php讀取這些檔案的內容,然後計算檔案裡面字數.
1.PHP讀取DOC格式的檔案
PHP沒有自帶讀取word檔案的類,或者是庫,這裡我們使用
首先介紹一下如何在windows下使用:
1.開啟http://www.winfield.demon.nl/(antiword下載頁面),找到對應的windows版本(http://www.winfield.demon.nl/#Windows),下載antiword windows版本(antiword-0_37-windows.zip);
2.將下載下來的檔案解壓到C盤根目錄下;
這裡還有一點需要注意的:http://www.informatik.uni-frankfurt.de/~markus/antiword/00README.WIN這個連線裡有windows下安裝的說明檔案.
需要設定環境變數,我的電腦(右鍵)->高階->環境變數->在上面的使用者變數裡新建一個
變數名:HOME
變數值:c:\home這個目錄應該是存在的,如果不存在就在C盤下建立一個home資料夾.
然後在系統變數,修改Path,在Path變數的值最前面加上%HOME%\antiword.
3.開始->執行->CMD 進入到antiword目錄;
輸入 antiword -h 看看效果.
4.然後我們使用antiword –t 命令讀取一下doc檔案內容;首先複製一個doc檔案到c:\antiword目錄,然後執行
>antiword –t 檔名.doc
就可以看到螢幕上輸出word檔案的內容了.
可能你會問了,這和PHP讀取word有什麼關係呢?呵呵,別急,我們來看看如何在PHP裡使用這個命令.
<?php
$file = “D:\xampp\htdocs\word_count\uploads\doc-english.doc”;
$content = shell_exec(“c:\antiword\antiword –f $file”);
?>
這樣就把word裡面的內容讀取content裡面了.
至於如何在Linux下讀取doc檔案內容,就是下載linux版本的壓縮包,裡面有readme.txt檔案,按照那種方式安裝就可以了.
$content = shell_exec ( "/usr/local/bin/antiword -f $file" );
2.PHP讀取PDF檔案內容
php也沒有專門用來讀取pdf內容的類庫.這樣我們採用第三方包(xpdf).還是先做windows下的操作,下載,將其解壓到C盤根目錄下.
開始->執行->cmd->cd /d c:\xpdf
<?php
$file = “D:\xampp\htdocs\word_count\uploads\pdf-english.pdf”;
$content = shell_exec ( "c:\\xpdf\\pdftotext $file -" );
?>
這樣就可以把pdf檔案的內容讀取到php變數裡了.
Linux下的安裝方法也很簡單這裡就不在一一列出
<?php
$content = shell_exec ( "/usr/bin/pdftotext $file -" );
?>
3.PHP讀取ZIP檔案內容
首先使用PHP zip解壓zip檔案,然後讀取解壓包裡的檔案,如果是word就採用antiword讀取,如果是pdf就使用xpdf讀取.
<?php
/**
* Read ZIP valid file
*
* @param string $file file path
* @return string total valid content
*/
function ReadZIPFile($file = '') {
$content = "";
$inValidFileName = array ();
$zip = new ZipArchive ( );
if ($zip->open ( $file ) === TR ) {
for($i = 0; $i < $zip->numFiles; $i ++) {
$entry = $zip->getNameIndex ( $i );
if (preg_match ( '#\.(txt)|\.(doc)|\.(docx)|\.(pdf)$#i', $entry )) {
$zip->extractTo ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ), array (
$entry
) );
$content .= CheckSystemOS ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ) . "/" . $entry );
} else {
$inValidFileName [$i] = $entry;
}
}
$zip->close ();
rrmdir ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ) );
/*if (file_exists ( $file )) {
unlink ( $file );
}*/
return $content;
} else {
return "";
}
}
?>
4.PHP讀取DOCX檔案內容
docx檔案其實是由很多XML檔案組成,其中內容就存在於word/document.xml裡面.
我們找到一個docx檔案,使用zip檔案開啟(或者把docx字尾名改為zip,然後解壓)
在word目錄下有document.xml
docx檔案的內容就存在於document.xml裡面,我們讀取這個檔案就可以了.
<?php
/**
* Read Docx File
*
* @param string $file filepath
* @return string file content
*/
function parseWord($file) {
$content = "";
$zip = new ZipArchive ( );
if ($zip->open ( $file ) === tr ) {
for($i = 0; $i < $zip->numFiles; $i ++) {
$entry = $zip->getNameIndex ( $i );
if (pathinfo ( $entry, PATHINFO_BASENAME ) == "document.xml") {
$zip->extractTo ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ), array (
$entry
) );
$filepath = pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ) . "/" . $entry;
$content = strip_tags ( file_get_contents ( $filepath ) );
break;
}
}
$zip->close ();
rrmdir ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ) );
return $content;
} else {
return "";
}
}
?>
如果想要通過PHP建立docx檔案,或者是把docx檔案轉為xhtml,pdf可以使用phpdocx,(http://www.phpdocx.com/)
5.PHP讀TXT
直接使用PHP file_get_content函式就可以了.
<?php
$file = “D:\xampp\htdocs\word_count\uploads\eng.txt”;
$content = file_get_content($file);
?>
6.PHP讀EXCEL
現在只是讀取檔案內容了,怎麼計算單詞的個數呢?
PHP有一個自帶的函式,str_word_count,這個函式可以計算出單詞的個數,但是如果要計算antiword讀取出來的doc檔案的單詞個數就會很大的誤差.
這裡我們使用以下這個函式專門用來讀取單詞個數
<?php
/**
* statistic word count
*
* @param string $content word content of the file
* @return int word count of the content
*/
function StatisticWordsCount($text = '') {
// $text = trim ( preg_replace ( '/\d+/', ' ', $text ) ); // remove extra spaces
$text = str_replace ( str_split ( '|' ), '', $text ); // remove these chars (you can specify more)
// $text = str_replace ( str_split ( '-' ), '', $text ); // remove these chars (you can specify more)
$text = trim ( preg_replace ( '/\s+/', ' ', $text ) ); // remove extra spaces
$text = preg_replace ( '/-{2,}/', '', $text ); // remove 2 or more dashes in a row
$len = strlen ( $text );
if (0 === $len) {
return 0;
}
$words = 1;
while ( $len -- ) {
if (' ' === $text [$len]) {
++ $words;
}
}
return $words;
}
?>
詳細的程式碼如下:
<?php
/**
* check system operation win or linux
*
* @param string $file contain file path and file name
* @return file content
*/
function CheckSystemOS($file = '') {
$content = "";
// $type = s str ( $file, strrpos ( $file, '.' ) + 1 );
$type = pathinfo ( $file, PATHINFO_EXTENSION );
// global $UNIX_ANTIWORD_PATH, $UNIX_XPDF_PATH;
if (strtoupper ( s str ( PHP_OS, 0, 3 ) ) === 'WIN') { //this is a server using windows
switch (strtolower ( $type )) {
case 'doc' :
$content = shell_exec ( "c:\\antiword\\antiword -f $file" );
break;
case 'docx' :
$content = parseWord ( $file );
break;
case 'pdf' :
$content = shell_exec ( "c:\\xpdf\\pdftotext $file -" );
break;
case 'zip' :
$content = ReadZIPFile ( $file );
break;
case 'txt' :
$content = file_get_contents ( $file );
break;
}
} else { //this is a server not using windows
switch (strtolower ( $type )) {
case 'doc' :
$content = shell_exec ( "/usr/local/bin/antiword -f $file" );
break;
case 'docx' :
$content = parseWord ( $file );
break;
case 'pdf' :
$content = shell_exec ( "/usr/bin/pdftotext $file -" );
break;
case 'zip' :
$content = ReadZIPFile ( $file );
break;
case 'txt' :
$content = file_get_contents ( $file );
break;
}
}
/*if (file_exists ( $file )) {
@unlink ( $file );
}*/
return $content;
}
/**
* statistic word count
*
* @param string $content word content of the file
* @return int word count of the content
*/
function StatisticWordsCount($text = '') {
// $text = trim ( preg_replace ( '/\d+/', ' ', $text ) ); // remove extra spaces
$text = str_replace ( str_split ( '|' ), '', $text ); // remove these chars (you can specify more)
// $text = str_replace ( str_split ( '-' ), '', $text ); // remove these chars (you can specify more)
$text = trim ( preg_replace ( '/\s+/', ' ', $text ) ); // remove extra spaces
$text = preg_replace ( '/-{2,}/', '', $text ); // remove 2 or more dashes in a row
$len = strlen ( $text );
if (0 === $len) {
return 0;
}
$words = 1;
while ( $len -- ) {
if (' ' === $text [$len]) {
++ $words;
}
}
return $words;
}
/**
* Read Docx File
*
* @param string $file filepath
* @return string file content
*/
function parseWord($file) {
$content = "";
$zip = new ZipArchive ( );
if ($zip->open ( $file ) === tr ) {
for($i = 0; $i < $zip->numFiles; $i ++) {
$entry = $zip->getNameIndex ( $i );
if (pathinfo ( $entry, PATHINFO_BASENAME ) == "document.xml") {
$zip->extractTo ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ), array (
$entry
) );
$filepath = pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ) . "/" . $entry;
$content = strip_tags ( file_get_contents ( $filepath ) );
break;
}
}
$zip->close ();
rrmdir ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ) );
return $content;
} else {
return "";
}
}
/**
* Read ZIP valid file
*
* @param string $file file path
* @return string total valid content
*/
function ReadZIPFile($file = '') {
$content = "";
$inValidFileName = array ();
$zip = new ZipArchive ( );
if ($zip->open ( $file ) === TR ) {
for($i = 0; $i < $zip->numFiles; $i ++) {
$entry = $zip->getNameIndex ( $i );
if (preg_match ( '#\.(txt)|\.(doc)|\.(docx)|\.(pdf)$#i', $entry )) {
$zip->extractTo ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ), array (
$entry
) );
$content .= CheckSystemOS ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ) . "/" . $entry );
} else {
$inValidFileName [$i] = $entry;
}
}
$zip->close ();
rrmdir ( pathinfo ( $file, PATHINFO_DIRNAME ) . "/" . pathinfo ( $file, PATHINFO_FILENAME ) );
/*if (file_exists ( $file )) {
unlink ( $file );
}*/
return $content;
} else {
return "";
}
}
/**
* remove directory
*
* @param string $dir path dir
*/
function rrmdir($dir) {
if (is_dir ( $dir )) {
$objects = scandir ( $dir );
foreach ( $objects as $object ) {
if ($object != "." && $object != "..") {
if (filetype ( $dir . "/" . $object ) == "dir") {
rrmdir ( $dir . "/" . $object );
} else {
unlink ( $dir . "/" . $object );
}
}
}
reset ( $objects );
rmdir ( $dir );
}
}
//呼叫方法
$file = “D:\xampp\htdocs\word_count\uploads\pdf-german.zip”;
$word_number = StatisticWordsCount ( CheckSystemOS ( $file) );
?>
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