// ==============  add as many multiple fields as you want ===============//
Add_Media_Uploader_X('my-page-logo');
Add_Media_Uploader_X('my-sticker-image');
Add_Media_Uploader_X('post-poopup-picture');






// ==============  but at first define this function   =====================//

function Add_Media_Uploader_X( $title){
	$GLOBALS['image_uploader_fields'][] = $title;

	// avoid the below block to execute multiple times
	if (!defined('already_triggered_999999')){
		define('already_triggered_999999',true);
		Register_uploader_functionality();
	}
}

	function Register_uploader_functionality(){

		add_action('plugins_loaded', function(){
			if($GLOBALS['pagenow']=='post.php'){
				add_action('admin_print_scripts', 'my_admin_scripts');
				add_action('admin_print_styles', 'my_admin_styles');
			}
		});
		function my_admin_scripts()	{wp_enqueue_script('jquery');	wp_enqueue_script('media-upload');	wp_enqueue_script('thickbox'); }
		function my_admin_styles()	{wp_enqueue_style('thickbox');	}
		add_action('add_meta_boxes', function(){  add_meta_box('my-Images-Upload', 'my-Images-Upload-box','myfunc8888', get_post_types(),'normal'); }, 9);


		function myfunc8888($post){
			foreach ( $GLOBALS['image_uploader_fields'] as $each) {
				$url = get_post_meta($post->ID,'my-image--'.$each, true);
				?>
				<div class="<?php echo $each;?>" style="border:1px solid black; border-width:0 0 2px 0;">
					<h1><?php echo $each;?></h1>
					<input id="my_upl_button_<?php echo $each;?>" type="button" value="Upload Image" /> <input id="my_image_URL_<?php echo $each;?>" name="my_image_URL_<?php echo $each;?>" type="text" value="<?php echo $url;?>" style="width:400px;" />
					<br/><img src="<?php echo $url;?>" style="width:200px;" id="picsrc_<?php echo $each;?>" />
					<script>
					jQuery(document).ready( function( $ ) {
						jQuery('#my_upl_button_<?php echo $each;?>').click(function() {
							//use here, because you may have multiple buttons, so `send_to_editor` needs fresh
							window.send_to_editor = function(html) {
								imgurl = jQuery(html).attr('src')
								jQuery('#my_image_URL_<?php echo $each;?>').val(imgurl);
								jQuery('#picsrc_<?php echo $each;?>').attr("src",imgurl);
								tb_remove();
							}

							formfield = jQuery('#my_image_URL_<?php echo $each;?>').attr('name');
							tb_show( '', 'media-upload.php?type=image&amp;TB_iframe=true' );
							return false;
						});
					});
					</script>
				</div>
			<?php

			}

		}


		add_action( 'save_post', function ($post_id) {
			foreach ( $GLOBALS['image_uploader_fields'] as $each) {
				if (isset($_POST['my_image_URL_'.$each])){
					update_post_meta($post_id, 'my-image--'.$each, $_POST['my_image_URL_'.$each]);
				}
			}
		});
	}