Download or fetch remote image files from base link and file names file_get_contents file_put_contents

allProductImages.php

<?php 
return [
  "1-big.jpg",
  "1_01.gif",
  "1_02.gif",
  "1_04.gif",
  "1_05.gif",
  "1_07.gif",
  "1_09.gif",
  "1_11.gif",
  "2-big.jpg",
  "3-big.jpg",
  "4-big.jpg",
  "5-big.jpg",
  "1041_1.jpg",
  "1041_2.jpg",
  "1041_3.jpg",
  "1041_4.jpg",
];

Download or fetch remote image files from base link and file names

// Curl can be used but needs some processing to get the images names in an array.
// $data = wp_remote_get('http://www.perfectpartiesusa.com/wp-content/themes/pparties/images/');
// $body = wp_remote_retrieve_body($data);

$allProductImages = include "allProductImages.php";
$baselink = 'http://www.perfectpartiesusa.com/images/';
foreach ($allProductImages as $img_slug) {
	$image_file = file_get_contents($baselink . $img_slug);
	$put_link = $_SERVER['DOCUMENT_ROOT'].'/store-images/'.$img_slug;
	file_put_contents($put_link, $image_file);
}

In order to collect an array of images file name, you can follow the screenshot below or use curl or wp_remote_get in WordPress. Put all the images names in allProductImages.php file.

Here are downloaded files: