wp php dowload file

dowload-file.php

<?php 

	require_once( ABSPATH . 'wp-admin/includes/image.php' );
	require_once( ABSPATH . 'wp-admin/includes/file.php' );
	require_once( ABSPATH . 'wp-admin/includes/media.php' );
	$file_array = [];
	$tmp = download_url($this->infoProduct[0]['image_src'][0]);
	preg_match('/[^\?]+\.(jpg|jpe|jpeg|gif|png)/i', $this->infoProduct[0]['image_src'][0], $matches );
	$file_array['name'] = basename($matches[0]);
	$file_array['tmp_name'] = $tmp;
	$media_id = media_handle_sideload( $file_array, $post_id);
	if( is_wp_error($media_id) ) {
		@unlink($file_array['tmp_name']);
		echo $media_id->get_error_messages();
	}
	@unlink( $file_array['tmp_name'] );
	set_post_thumbnail($post_id, $media_id);





            if (!empty( $_FILES['files-image'] )) {
                $files = $_FILES['files-image'];
                foreach ($files['name'] as $key => $value) {
                    if ($files['name'][$key]) {
                        $file = array(
                            'name' => $files['name'][$key],
                            'type' => $files['type'][$key],
                            'tmp_name' => $files['tmp_name'][$key],
                            'error' => $files['error'][$key],
                            'size' => $files['size'][$key]
                        );
                        
                        $gallery_attachments[] = media_handle_sideload($file, $post_id);
                    }
                }

            }