Obtener sugerencias de keywords desde google usando el cliente HTTP de Laravel.

<?php
use Illuminate\Support\Facades\Http;
if (!function_exists('suggestKeyword')) {
	/**
	 * Undocumented function
	 *
	 * @param string $param
	 * @return array
	 */
	function suggestKeyword(string $param): array
	{
		$keywords = [];
		$url = 'https://suggestqueries.google.com/complete/search?output=firefox&client=firefox&q=' . urlencode($param);
		$response = Http::get($url);
		$jsonData = $response->json();
		if (($data = $jsonData) !== null) {
			$keywords = $data[1];
		}
		return $keywords;
	}
}

$keywords = suggestKeyword('php');

Array
(
    [0] => php
    [1] => phpmyadmin
    [2] => php date
    [3] => phpstorm
    [4] => php online
    [5] => php array length
    [6] => php foreach
    [7] => phpunit
    [8] => php array
    [9] => php try catch
)