例如我有一个数组
$a = [1,2,3,4,5];
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由此$a,如何获取最后一个数组并将其设置为第一个[5,1,2,3,4]
,以及如何获取最后两个数组以使其像[4,5,1,2,3]
我的 Laravel 应用程序有一些问题。我正在尝试制作刮刀,它看起来像这样。
<?php
namespace App\Http\Controllers;
use App\Scraper\Amazon;
use Illuminate\Http\Request;
class ScraperController extends Controller
{
public $test;
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
$this->test = new Amazon();
return $this->test;
}
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如您所见,我在应用程序中创建了名为 Scraper 的新文件夹,我有 Amazon.php 文件,如下所示:
<?php
namespace App\Scraper;
use Goutte\Client;
class Amazon
{
public string $test = '';
public function __construct()
{
return "test";
}
public function index()
{
$client = new Client();
$crawler = $client->request('GET', 'https://www.amazon.co.uk/dp/B002SZEOLG/');
$crawler->filter('#productTitle')->each(function ($node) …Run Code Online (Sandbox Code Playgroud)