Include file PDF in folders with accents in PHP - php

Question

I've tried several ways to include a PDF file using PHP on Linux, it works normally on Windows, but not on Linux.
I have several directories with accents and I need to include PDF files that are inside the directories.
I pass the name of the PDF files and include the PDF.
My problem is with the encoding and accentuation of the folders. The files doesn't have accents, only the folders.
Examples of folders / files:
files/ño/hash1.pdf
files/nó/hash2.pdf
files/ção/hash.pdf
function getFileInContents($dir, $filename)
{
$files = scandir($dir);
foreach ($files as $key => $value) {
$path = realpath($dir . '/' . $value);
if (!is_dir($path)) {
if ($filename == $value) {
return $path;
}
} elseif ($value != "." && $value != "..") {
getFileInContents($path, $filename);
}
}
return null;
}
if (!isset($_GET['f'])) {
echo 'File not found';
exit;
}
$local = 'files/';
$path = getFileInContents($local, $_GET['f']);
if (!$path) {
echo 'File not found';
exit;
}
$mime = mime_content_type($path);
header('Content-Type: ' . $mime);
include_once($path);

Answer 1

My answer adds on and expounds on the one offered up by #James, because you have additional issues:
As pointed out in the comment made by #Olivier, you should be using readfile() instead of include.
You should not include the final '/' in your declaration of $local since you will be concatenating a '/' to the passed $dir argument in function getFileInContents.
Presumably function getFileInContents is intended to recursively search subdirectories, but it is not doing this correctly; it only is searching the first subdirectory it finds and if the sought file is not present in that subdirectory it returns with a "not found" condition and never searches any other subdirectories that might be present in the directory.
function getFileInContents($dir, $filename)
{
$files = scandir($dir);
foreach ($files as $key => $value) {
$path = realpath($dir . '/' . $value);
if (!is_dir($path)) {
if ($filename == $value) {
return $path;
}
} elseif ($value != "." && $value != "..") {
$new_path = getFileInContents($path, $filename);
if ($new_path) {
return $new_path;
}
}
}
return null;
}
if (!isset($_GET['f'])) {
echo 'File not found';
exit;
}
$local = 'files';
$path = getFileInContents($local, $_GET['f']);
if (!$path) {
echo 'File not found';
exit;
}
$mime = mime_content_type($path);
header('Content-Type: ' . $mime);
readfile($path);

Answer 2

I don't think the problem is anything to do with the folder names. I think the problem is that your recursive function is not actually returning the value when it finds the file.
When you call getFileInContents($path, $filename); you then need to return the value, if it's not null, to break the loop.
function getFileInContents($dir, $filename)
{
$files = scandir($dir);
foreach ($files as $key => $value) {
$path = realpath($dir . '/' . $value);
if (!is_dir($path)) {
if ($filename == $value) {
return $path;
}
} elseif ($value != "." && $value != "..") {
$testValue = getFileInContents($path, $filename);
if ($testValue!=null){
return $testValue;
}
}
}
return null;
}