310 lines
9.4 KiB
Markdown
310 lines
9.4 KiB
Markdown
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<p align="center">
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<img width="150" src="logo.png" alt="QueryList">
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<br>
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<br>
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</p>
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# QueryList 简介
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`QueryList`是一套简洁、优雅、可扩展的PHP采集工具(爬虫)，基于phpQuery。
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## 特性
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- 拥有与jQuery完全相同的CSS3 DOM选择器
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- 拥有与jQuery完全相同的DOM操作API
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- 拥有通用的列表采集方案
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- 拥有强大的HTTP请求套件，轻松实现如：模拟登陆、伪造浏览器、HTTP代理等意复杂的网络请求
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- 拥有乱码解决方案
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- 拥有强大的内容过滤功能，可使用jQuey选择器来过滤内容
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- 拥有高度的模块化设计，扩展性强
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- 拥有富有表现力的API
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- 拥有高质量文档
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- 拥有丰富的插件
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- 拥有专业的问答社区和交流群
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通过插件可以轻松实现诸如：
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- 多线程采集
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- 采集JavaScript动态渲染的页面 (PhantomJS/headless WebKit)
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- 图片本地化
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- 模拟浏览器行为，如：提交Form表单
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- 网络爬虫
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- .....
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## 环境要求
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- PHP >= 7.1
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> 如果你的PHP版本还停留在PHP5，或者不会使用Composer,你可以选择使用QueryList3,QueryList3支持php5.3以及手动安装。
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QueryList3 文档:http://v3.querylist.cc
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## 安装
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通过Composer安装:
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```
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composer require jaeger/querylist
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```
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## 使用
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#### 元素操作
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- 采集「昵图网」所有图片地址
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```php
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QueryList::get('http://www.nipic.com')->find('img')->attrs('src');
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```
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- 采集百度搜索结果
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```php
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$ql = QueryList::get('http://www.baidu.com/s?wd=QueryList');
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$ql->find('title')->text(); // 获取网站标题
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$ql->find('meta[name=keywords]')->content; // 获取网站头部关键词
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$ql->find('h3>a')->texts(); //获取搜索结果标题列表
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$ql->find('h3>a')->attrs('href'); //获取搜索结果链接列表
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$ql->find('img')->src; //获取第一张图片的链接地址
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$ql->find('img:eq(1)')->src; //获取第二张图片的链接地址
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$ql->find('img')->eq(2)->src; //获取第三张图片的链接地址
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// 遍历所有图片
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$ql->find('img')->map(function($img){
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echo $img->alt; //打印图片的alt属性
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});
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```
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- 更多用法
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```php
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$ql->find('#head')->append('<div>追加内容</div>')->find('div')->htmls();
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$ql->find('.two')->children('img')->attrs('alt'); //获取class为two元素下的所有img孩子节点
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//遍历class为two元素下的所有孩子节点
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$data = $ql->find('.two')->children()->map(function ($item){
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//用is判断节点类型
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if($item->is('a')){
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return $item->text();
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}elseif($item->is('img'))
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{
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return $item->alt;
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}
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});
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$ql->find('a')->attr('href', 'newVal')->removeClass('className')->html('newHtml')->...
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$ql->find('div > p')->add('div > ul')->filter(':has(a)')->find('p:first')->nextAll()->andSelf()->...
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$ql->find('div.old')->replaceWith( $ql->find('div.new')->clone())->appendTo('.trash')->prepend('Deleted')->...
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```
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#### 列表采集
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采集百度搜索结果列表的标题和链接:
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```php
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$data = QueryList::get('http://www.baidu.com/s?wd=QueryList')
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// 设置采集规则
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->rules([
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'title'=>array('h3','text'),
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'link'=>array('h3>a','href')
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])
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->query()->getData();
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print_r($data->all());
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```
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采集结果:
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```
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Array
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(
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[0] => Array
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(
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[title] => QueryList|基于phpQuery的无比强大的PHP采集工具
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[link] => http://www.baidu.com/link?url=GU_YbDT2IHk4ns1tjG2I8_vjmH0SCJEAPuuZN
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)
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[1] => Array
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(
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[title] => PHP 用QueryList抓取网页内容 - wb145230 - 博客园
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[link] => http://www.baidu.com/link?url=zn0DXBnrvIF2ibRVW34KcRVFG1_bCdZvqvwIhUqiXaS
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)
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[2] => Array
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(
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[title] => 介绍- QueryList指导文档
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[link] => http://www.baidu.com/link?url=pSypvMovqS4v2sWeQo5fDBJ4EoYhXYi0Lxx
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)
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//...
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)
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```
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#### 编码转换
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```php
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// 输出编码:UTF-8,输入编码:GB2312
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QueryList::get('https://top.etao.com')->encoding('UTF-8','GB2312')->find('a')->texts();
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// 输出编码:UTF-8,输入编码:自动识别
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QueryList::get('https://top.etao.com')->encoding('UTF-8')->find('a')->texts();
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```
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#### HTTP网络操作（GuzzleHttp）
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- 携带cookie登录新浪微博
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```php
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//采集新浪微博需要登录才能访问的页面
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$ql = QueryList::get('http://weibo.com','param1=testvalue & params2=somevalue',[
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'headers' => [
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//填写从浏览器获取到的cookie
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'Cookie' => 'SINAGLOBAL=546064; wb_cmtLike_2112031=1; wvr=6;....'
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]
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]);
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//echo $ql->getHtml();
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echo $ql->find('title')->text();
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//输出: 我的首页 微博-随时随地发现新鲜事
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```
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- 使用Http代理
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```php
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$urlParams = ['param1' => 'testvalue','params2' => 'somevalue'];
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$opts = [
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// 设置http代理
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'proxy' => 'http://222.141.11.17:8118',
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//设置超时时间，单位：秒
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'timeout' => 30,
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// 伪造http头
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'headers' => [
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'Referer' => 'https://querylist.cc/',
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'User-Agent' => 'testing/1.0',
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'Accept' => 'application/json',
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'X-Foo' => ['Bar', 'Baz'],
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'Cookie' => 'abc=111;xxx=222'
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]
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];
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$ql->get('http://httpbin.org/get',$urlParams,$opts);
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// echo $ql->getHtml();
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```
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- 模拟登录
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```php
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// 用post登录
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$ql = QueryList::post('http://xxxx.com/login',[
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'username' => 'admin',
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'password' => '123456'
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])->get('http://xxx.com/admin');
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//采集需要登录才能访问的页面
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$ql->get('http://xxx.com/admin/page');
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//echo $ql->getHtml();
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```
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#### Form表单操作
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模拟登陆GitHub
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```php
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// 获取QueryList实例
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$ql = QueryList::getInstance();
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//获取到登录表单
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$form = $ql->get('https://github.com/login')->find('form');
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//填写GitHub用户名和密码
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$form->find('input[name=login]')->val('your github username or email');
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$form->find('input[name=password]')->val('your github password');
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//序列化表单数据
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$fromData = $form->serializeArray();
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$postData = [];
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foreach ($fromData as $item) {
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$postData[$item['name']] = $item['value'];
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}
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//提交登录表单
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$actionUrl = 'https://github.com'.$form->attr('action');
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$ql->post($actionUrl,$postData);
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//判断登录是否成功
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// echo $ql->getHtml();
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$userName = $ql->find('.header-nav-current-user>.css-truncate-target')->text();
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if($userName)
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{
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echo '登录成功!欢迎你:'.$userName;
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}else{
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echo '登录失败!';
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}
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```
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#### Bind功能扩展
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自定义扩展一个`myHttp`方法:
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```php
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$ql = QueryList::getInstance();
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//绑定一个myHttp方法到QueryList对象
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$ql->bind('myHttp',function ($url){
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// $this 为当前的QueryList对象
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$html = file_get_contents($url);
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$this->setHtml($html);
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return $this;
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});
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//然后就可以通过注册的名字来调用
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$data = $ql->myHttp('https://toutiao.io')->find('h3 a')->texts();
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print_r($data->all());
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```
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或者把实现体封装到class，然后这样绑定:
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```php
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$ql->bind('myHttp',function ($url){
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return new MyHttp($this,$url);
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});
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```
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#### 插件使用
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- 使用PhantomJS插件采集JavaScript动态渲染的页面:
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```php
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// 安装时设置PhantomJS二进制文件路径
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$ql = QueryList::use(PhantomJs::class,'/usr/local/bin/phantomjs');
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// 采集今日头条手机版
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$data = $ql->browser('https://m.toutiao.com')->find('p')->texts();
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print_r($data->all());
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// 使用HTTP代理
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$ql->browser('https://m.toutiao.com',false,[
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'--proxy' => '192.168.1.42:8080',
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'--proxy-type' => 'http'
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])
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```
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- 使用CURL多线程插件,多线程采集GitHub排行榜:
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```php
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$ql = QueryList::use(CurlMulti::class);
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$ql->curlMulti([
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'https://github.com/trending/php',
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'https://github.com/trending/go',
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//.....more urls
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])
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// 每个任务成功完成调用此回调
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->success(function (QueryList $ql,CurlMulti $curl,$r){
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echo "Current url:{$r['info']['url']} \r\n";
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$data = $ql->find('h3 a')->texts();
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print_r($data->all());
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})
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// 每个任务失败回调
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->error(function ($errorInfo,CurlMulti $curl){
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echo "Current url:{$errorInfo['info']['url']} \r\n";
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print_r($errorInfo['error']);
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})
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->start([
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// 最大并发数
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'maxThread' => 10,
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// 错误重试次数
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'maxTry' => 3,
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]);
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```
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## 插件
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- [jae-jae/QueryList-PhantomJS](https://github.com/jae-jae/QueryList-PhantomJS): 使用PhantomJS采集JavaScript动态渲染的页面
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- [jae-jae/QueryList-CurlMulti](https://github.com/jae-jae/QueryList-CurlMulti) : Curl多线程采集
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- [jae-jae/QueryList-AbsoluteUrl](https://github.com/jae-jae/QueryList-AbsoluteUrl) : 转换URL相对路径到绝对路径
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- [jae-jae/QueryList-Rule-Google](https://github.com/jae-jae/QueryList-Rule-Google) : 谷歌搜索引擎
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- [jae-jae/QueryList-Rule-Baidu](https://github.com/jae-jae/QueryList-Rule-Baidu) : 百度搜索引擎
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查看更多的QueryList插件和基于QueryList的产品:[QueryList社区力量](https://github.com/jae-jae/QueryList-Community)
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## 贡献
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欢迎为QueryList贡献代码。关于贡献插件可以查看:[QueryList插件贡献说明](https://github.com/jae-jae/QueryList-Community/blob/master/CONTRIBUTING.md)
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## 寻求帮助?
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- QueryList主页: [http://querylist.cc](http://querylist.cc/)
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- QueryList文档: [http://doc.querylist.cc](http://doc.querylist.cc/)
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- QueryList问答:[http://wenda.querylist.cc](http://wenda.querylist.cc/)
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- QueryList交流QQ群:123266961 <a target="_blank" href="http://shang.qq.com/wpa/qunwpa?idkey=a1b248ae30b3f711bdab4f799df839300dc7fed54331177035efa0513da027f6"><img border="0" src="http://pub.idqqimg.com/wpa/images/group.png" alt="cafeEX" title="cafeEX"></a>
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- GitHub:https://github.com/jae-jae/QueryList
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- Git@OSC:http://git.oschina.net/jae/QueryList
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## Author
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Jaeger <JaegerCode@gmail.com>
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## Lisence
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QueryList is licensed under the license of MIT. See the LICENSE for more details.
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