php - 只读 pdf 文件并获取目录中该 pdf 文件的文件名

Question

我只需要读取目录中的 pdf 文件，然后读取每个文件的文件名，然后我将使用文件名重命名一些 txt 文件。我试过只使用 eregi 函数。但它似乎无法阅读我需要的所有内容。如何读好它们？这是我的代码:

$savePath   ='D:/dir/';
$dir       = opendir($savePath);
$filename  = array();

while ($filename = readdir($dir)) {
if (eregi("\.pdf",$filename)){
    $read = strtok ($filename,"."); //get the filenames

//to rename some txt files using the filenames that I get before
//$testfile is text files that I've read before
    $testfile = "$read.txt";
    $file = fopen($testfile,"r") or die ('cannot open file');

    if (filesize($testfile)==0){} 
    else{
        $text = fread($file,55024);
        fclose($file);
        echo "</br>"; echo "</br>";         
    }
}

Answer 1

更优雅:

foreach (glob("D:/dir/*.pdf") as $filename) {
    // do something with $filename
}

只获取文件名:

foreach (glob("D:/dir/*.pdf") as $filename) {
    $filename = basename($filename);
    // do something with $filename
}