Handle to generate a tiny url with tinyurl.com api.

generate-tiny-url.php

<?php
/**
 * Generate tiny url
 *
 * @author   Maxime Culea
 *
 * @param string $post_id
 *
 * @return string
 */
public static function get_tiny_url( $url = '' ) {
	$url     = ! empty( $url ) ? $url : get_the_permalink();
	$results = wp_remote_get( add_query_arg( [ 'url' => urlencode( $url ) ], 'http://tinyurl.com/api-create.php' ) );
		if ( is_wp_error( $results ) ) {
		return $url;
	}
		if ( 200 !== (int) wp_remote_retrieve_response_code( $results ) ) {
		return $url;
	}
		$tiny_url = wp_remote_retrieve_body( $results );
	return ! empty( $tiny_url ) ? $tiny_url : $url;
}