我在一个文件夹中有许多PDF。我想使用xpdf从这些PDF中提取文本。例如：
- example1.pdf摘录到example1.txt
- example2.pdf摘录到example2.txt
- 等等
这是我的代码：
<?php
$path = 'C:/AppServ/www/pdfs/';
$dir = opendir($path);
$f = readdir($dir);
while ($f = readdir($dir)) {
if (eregi("'.pdf",$f)){
$content = shell_exec('C:/AppServ/www/pdfs/pdftotext '.$f.' ');
$read = strtok ($f,".");
$testfile = "$read.txt";
$file = fopen($testfile,"r");
if (filesize($testfile)==0){}
else{
$text = fread($file,filesize($testfile));
fclose($file);
echo "</br>"; echo "</br>";
}
}
}
我得到一个空白的结果。我的代码出了什么问题？
尝试使用这个：
$dir = opendir($path);
$filename = array();
while ($filename = readdir($dir)) {
if (eregi("'.pdf",$filename)){
$content = shell_exec('C:/AppServ/www/pdfs/pdftotext '.$filename.' ');
$read = strtok ($filename,".");
$testfile = "$read.txt";
$file = fopen($testfile,"r");
if (filesize($testfile)==0){}
else{
$text = fread($file,filesize($testfile));
fclose($file);
echo "</br>"; echo "</br>";
}
}
您不必创建临时的txt文件
$command = '/AppServ/www/pdfs/pdftotext ' . $filename . ' -';
$a = exec($command, $text, $retval);
echo $text;
如果不起作用，请检查服务器的错误日志。
行
echo "</br>";
echo "</br>";
应该是
echo "</br>";
echo $text."</br>";
希望这能帮助