Download file by URL and move in uploads directory

download-file-by-url.php

<?php
/**
 * Download File In Uploads Directory
 *
 * Eg. 
 *
 * $file = download_file( `file-url` );
 *
 * if( $file['success'] ) {
 * 		$file_abs_url = $file['data']['file'];
 * 		$file_url     = $file['data']['file'];
 * 		$file_type    = $file['data']['type'];
 * }
 *
 * @param  string $file Download File URL.
 * @return array        Downloaded file data.
 */
if( ! function_exists( 'download_file' ) :
	
	function download_file( $file = '' ) {

		// Gives us access to the download_url() and wp_handle_sideload() functions.
		require_once( ABSPATH . 'wp-admin/includes/file.php' );

		$timeout_seconds = 5;

		// Download file to temp dir.
		$temp_file = download_url( $file, $timeout_seconds );

		// WP Error.
		if ( is_wp_error( $temp_file ) ) {
			return array(
				'success' => false,
				'data'    => $temp_file->get_error_message(),
			);
		}

		// Array based on $_FILE as seen in PHP file uploads.
		$file_args = array(
			'name'     => basename( $file ),
			'tmp_name' => $temp_file,
			'error'    => 0,
			'size'     => filesize( $temp_file ),
		);

		$overrides = array(

			// Tells WordPress to not look for the POST form
			// fields that would normally be present as
			// we downloaded the file from a remote server, so there
			// will be no form fields
			// Default is true.
			'test_form'   => false,

			// Setting this to false lets WordPress allow empty files, not recommended.
			// Default is true.
			'test_size'   => true,

			// A properly uploaded file will pass this test. There should be no reason to override this one.
			'test_upload' => true,

		);

		// Move the temporary file into the uploads directory.
		$results = wp_handle_sideload( $file_args, $overrides );

		if ( isset( $results['error'] ) ) {
			return array(
				'success' => false,
				'data'    => $results,
			);
		}

		// Success!
		return array(
			'success' => true,
			'data'    => $results,
		);
	}

endif;