MicroFrameWork/kernel/FileUpload.php

<?php

namespace kernel;

use app\helpers\Debug;

class FileUpload
{
    public string $fileTmpPath;
    public string $fileName;
    public string $fileSize;
    public string $fileType;
    public array $fileNameCmps;
    public string $fileExtension;
//    public string $newFileName;
    public array $allowedFileExtensions;

    public function __construct(array $file, array $extensions)
    {
        $this->fileTmpPath = $file['tmp_name'];
        $this->fileName = $file['name'];
        $this->fileSize = $file['size'];
        $this->fileType = $file['type'];
        $this->fileNameCmps = explode('.', $this->fileName);
        $this->fileExtension = strtolower(end($this->fileNameCmps));
        $this->allowedFileExtensions = $extensions;
    }

//    public function setNewFileName(): void
//    {
//        $this->newFileName = md5(time() . $this->fileName) . '.' . $this->fileExtension;
//    }

//    public function checkExtension(): bool
//    {
//        if (in_array($this->fileExtension, $this->allowedFileExtensions)) {
//            return true;
//        }
//        return false;
//    }

    public function upload()
    {
        $newFileName = md5(time() . $this->fileName) . '.' . $this->fileExtension;
        if (in_array($this->fileExtension, $this->allowedFileExtensions)) {
            mkdir('./resources/upload/' . mb_substr($newFileName, 0, 2) . '/' . mb_substr($newFileName, 2, 2) . '/', 0777, true);
            $uploadFileDir = './resources/upload/' . mb_substr($newFileName, 0, 2) . '/' . mb_substr($newFileName, 2, 2) . '/';
            $dest_path = $uploadFileDir . $newFileName;
            move_uploaded_file($this->fileTmpPath, $dest_path);
        } else {
            return false;
        }
    }

}