zc100/application/plugins/controller/Baidushoulu.php

<?php
/**
 * 易优CMS
 * ============================================================================
 * 版权所有 2016-2028 海南赞赞网络科技有限公司，并保留所有权利。
 * 网站地址: http://www.eyoucms.com
 * ----------------------------------------------------------------------------
 * 如果商业用途务必到官方购买正版授权, 以免引起不必要的法律纠纷.
 * ============================================================================
 * Author: 小虎哥 <1105415366@qq.com>
 * Date: 2018-4-3
 */

namespace app\plugins\controller;

use think\Db;

class Baidushoulu extends Base
{
    /**
     * 构造方法
     */
    public function __construct(){
        parent::__construct();
    }

    /**
     * 收藏与取消
     * @return [type] [description]
     */
    public function ajax_domain()
    {
		$param = input('param.');
        error_reporting(0);
        header("Access-Control-Allow-Origin:*");
        header('Content-type: application/json');

        $domain = $param['domain'];
        if(!isset($domain) || empty($domain) || $domain==''){
            $data = array(
                "code" => false,
                "msg" => "未传入请求参数！"
            );
            echo json_encode($data,JSON_UNESCAPED_UNICODE);
            exit;
        }
        if(substr($domain, -1) == '/'){
            $domain = substr($domain,0,strlen($domain)-1);
        }

        $data = $this->checkBaidu($domain);
        echo json_encode($data,JSON_UNESCAPED_UNICODE);

    }
public function checkBaidu($url){
    $header = array(
        "Host:www.baidu.com",
        "Content-Type:application/x-www-form-urlencoded",//post请求
        "Connection: keep-alive",
        "Referer:https://www.baidu.com",
        "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.162 Safari/537.36"
    );
    $url = 'https://www.baidu.com/s?ie=UTF-8&wd='.urlencode($url).'&usm=3&rsv_idx=2&rsv_page=1';
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt ($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $output = curl_exec($ch);
    curl_close($ch);
    if(strpos($output, '没有找到') || strpos($output, '很抱歉')){
        $data = array(
            "code" => 403,
            "msg" => "该域名暂时未被百度收录！"
        );
    }else{
        $number = $this->GetBetween($output,'<span class="nums_text">百度为您找到相关结果约','个</span>');
        if(empty($number) || $number == 0){
            $number = $this->GetBetween($output,'<b>找到相关结果数约','个</b></p>');
            if(empty($number) || $number == 0){
                $data = array(
                    "code" => false,
                    "msg" => "获取百度收录失败！"
                );
                return $data;
            }
        }
        $data = array(
            "code" => 200,
            "msg" => "该域名已被百度收录！",
            "number" => str_replace(',','',$number)
        );
    }
    return $data;
}


public function GetBetween($content,$start,$end){
    $r = explode($start, $content);
    if (isset($r[1])){
        $r = explode($end, $r[1]);
        return $r[0];
    }
}

}