upload.php

<?php

$image = $_FILES['file']['tmp_name'];
$imagename = $_FILES['file']['name'];

$file_path = $_SERVER['DOCUMENT_ROOT'] . '/foto';

$response = array();

if (!file_exists($file_path)) {
    mkdir($file_path, 0777, true);
}

if(!$image){
        $response["kode"] = 0;
        $response["pesan"] = "Gambar Tidak Ditemukan";
}
else{
    if(move_uploaded_file($image, $file_path.'/'.$imagename)){
        $response["kode"] = 1;
        $response["pesan"] = "Gambar Sukses Diupload";
    }
}

echo json_encode($response);