Search for pdf files - php

Question

I have one little question, this is my code to list all files from a folder and subfolders;
if ($handle = opendir($dir)) {
$allFiles = array();
while (false !== ($entry = readdir($handle))) {
if ($entry != "." && $entry != "..") {
if (is_dir($dir . "/" . $entry)){
$allFiles[] = "D: " . $dir . "/" . $entry;
}else{
$extension = strtoupper(pathinfo($entry, PATHINFO_EXTENSION));
$fileNoExten = pathinfo($entry, PATHINFO_FILENAME);
$directory = substr(str_replace('/', ' > ', $dir), $rootLenOnce + 3);
$listagem .= '<tr>';
$listagem .= "<td><a href='../" . $dir . "/" . $entry . "' ' target='_blank'>" . $entry . "</a></td>";
//$listagem .= "<td><small>" . $directory . "</small></td>";
$listagem .= "<td>" . $extension . "</td>";
$listagem .= "<td><a class='download-cell' href='../".$dir ."/". $entry."' ' download> <i class='fa fa-download' ></i></a></td>";
$listagem .= "<td class='display-none'>" . $fileNoExten . "</td>";
$allFiles[] = "F: " . $dir . "/" . $entry;
$listagem .= '</tr>';
echo "<pre>"; print_r(glob("*.pdf")); echo "</pre>";
}
}
}
closedir($handle);
foreach($allFiles as $value){
$displayName = substr($value, $rootLen + 4);
$fileName = substr($value, 3);
$linkName = str_replace(" ", "%20", substr($value, $pathLen + 3));
if (is_dir($fileName)) {
myScanDirPdf($fileName, $level + 1, strlen($fileName),$rootLenOnce);
}
}
}
return $listagem;
}
what i need is to filtrate the search, to search only .pdf files.
Someone can help me plz!
Thks!
i try with the glob function, but not with great results.
Thks!

Answer 1

When you are looping through each file, you can use
if(stripos($fileName, ".pdf"))
Hope this will help
I have one more suggestion in listing all the files and subfolders.
You can use Recursive Iterator
$folderName = $_POST['folderName'];
$dir = new RecursiveDirectoryIterator($folderName);
$it = new RecursiveIteratorIterator($dir);
foreach ($it as $fileinfo) {
if ($fileinfo->isDir()) {
}elseif ($fileinfo->isFile()) {
$fileName = $fileinfo->getFileName();
if(stripos($fileName, ".pdf")) {
//do what you need to do
}
}
}