Form.php

<form id="formUploadImages" method="POST" enctype="multipart/form-data" action="index.php?module=GalleryImage&action=uploadImages&id=<?=$_GET['id']?>">

     <label>Buscar</label></dt>
     <input type="file" id="fileUpload" name="file[]" multiple="multiple"/>
     <input type="hidden" name="idGallery" value="<?=$_GET['id']?>" />

     <br clear="all"/><br />

     <button type="submit" class="green" name="uploadImages" onclick="">Salvar</button>
</form>