<?php

if (! (! empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest')) {
    echo 'Permission denied';
    exit;
}
if (! empty($_FILES)) {
    error_reporting(E_ERROR | E_PARSE);
    $file_name = $_FILES['file']['name'];
    $file_size = $_FILES['file']['size'];
    $file_tmp = $_FILES['file']['tmp_name'];
    if ($file_size > 0) {
        $upload_dir = './uploads';
        if (! is_dir($upload_dir)) {
            if (! mkdir($upload_dir, 0777, true)) {
                echo json_encode(['success' => 0,
                    'msg' => 'Permission denied. Make sure the intended directory is writable.',
                ]);
                exit;
            }
        }
        $new_file_name = time().'_'.$file_name;
        move_uploaded_file($file_tmp, $upload_dir.'/'.$new_file_name);
        $uploaded_file = [
            'success' => 1,
            'original_file_name' => $file_name,
            'path' => $new_file_name,
            'msg' => 'Uploaded Successfully',
        ];
        echo json_encode($uploaded_file);
        exit;
    }
}