QueryList 简介

<p align="center"> <img width="150" src="logo.png" alt="QueryList"> <br> <br> </p> # QueryList `QueryList` is a simple, elegant, extensible PHP Web Scraper (crawler/spider) ,based on phpQuery. [API Documentation](https://github.com/jae-jae/QueryList/wiki) [中文文档](README-ZH.md) ## Features - Have the same CSS3 DOM selector as jQuery - Have the same DOM manipulation API as jQuery - Have a generic list crawling program - Have a strong HTTP request suite, easy to achieve such as: simulated landing, forged browser, HTTP proxy and other complex network requests - Have a messy code solution - Have powerful content filtering, you can use the jQuey selector to filter content - Has a high degree of modular design, scalability and strong - Have an expressive API - Has a wealth of plug-ins Through plug-ins you can easily implement things like: - Multithreaded crawl - Crawl JavaScript dynamic rendering page (PhantomJS/headless WebKit) - Image downloads to local - Simulate browser behavior such as submitting Form forms - Web crawler - ..... ## Requirements - PHP >= 7.0 ## Installation By Composer installation: ``` composer require jaeger/querylist ``` ## Usage #### DOM Traversal and Manipulation - Crawl「GitHub」all picture links ```php QueryList::get('https://github.com')->find('img')->attrs('src'); ``` - Crawl Google search results ```php $ql = QueryList::get('https://www.google.co.jp/search?q=QueryList'); $ql->find('title')->text(); //The page title $ql->find('meta[name=keywords]')->content; //The page keywords $ql->find('h3>a')->texts(); //Get a list of search results titles $ql->find('h3>a')->attrs('href'); //Get a list of search results links $ql->find('img')->src; //Gets the link address of the first image $ql->find('img:eq(1)')->src; //Gets the link address of the second image $ql->find('img')->eq(2)->src; //Gets the link address of the third image // Loop all the images $ql->find('img')->map(function($img){ echo $img->alt; //Print the alt attribute of the image }); ``` - More usage ```php $ql->find('#head')->append('<div>Append content</div>')->find('div')->htmls(); $ql->find('.two')->children('img')->attrs('alt'); // Get the class is the "two" element under all img child nodes // Loop class is the "two" element under all child nodes $data = $ql->find('.two')->children()->map(function ($item){ // Use "is" to determine the node type if($item->is('a')){ return $item->text(); }elseif($item->is('img')) { return $item->alt; } }); $ql->find('a')->attr('href', 'newVal')->removeClass('className')->html('newHtml')->... $ql->find('div > p')->add('div > ul')->filter(':has(a)')->find('p:first')->nextAll()->andSelf()->... $ql->find('div.old')->replaceWith( $ql->find('div.new')->clone())->appendTo('.trash')->prepend('Deleted')->... ``` #### List crawl Crawl the title and link of the Google search results list: ```php $data = QueryList::get('https://www.google.co.jp/search?q=QueryList') // Set the crawl rules ->rules([ 'title'=>array('h3','text'), 'link'=>array('h3>a','href') ]) ->query()->getData(); print_r($data->all()); ``` Results: ``` Array ( [0] => Array ( [title] => Angular - QueryList [link] => https://angular.io/api/core/QueryList ) [1] => Array ( [title] => QueryList | @angular/core - Angularリファレンス - Web Creative Park [link] => http://www.webcreativepark.net/angular/querylist/ ) [2] => Array ( [title] => QueryListにQueryを追加したり、追加されたことを感知する | TIPS ... [link] => http://www.webcreativepark.net/angular/querylist_query_add_subscribe/ ) //... ) ``` #### Encode convert ```php // Out charset :UTF-8 // In charset :GB2312 QueryList::get('https://top.etao.com')->encoding('UTF-8','GB2312')->find('a')->texts(); // Out charset:UTF-8 // In charset:Automatic Identification QueryList::get('https://top.etao.com')->encoding('UTF-8')->find('a')->texts(); ``` #### HTTP Client (GuzzleHttp) - Carry cookie login GitHub ```php //Crawl GitHub content $ql = QueryList::get('https://github.com','param1=testvalue & params2=somevalue',[ 'headers' => [ // Fill in the cookie from the browser 'Cookie' => 'SINAGLOBAL=546064; wb_cmtLike_2112031=1; wvr=6;....' ] ]); //echo $ql->getHtml(); $userName = $ql->find('.header-nav-current-user>.css-truncate-target')->text(); echo $userName; ``` - Use the Http proxy ```php $urlParams = ['param1' => 'testvalue','params2' => 'somevalue']; $opts = [ // Set the http proxy 'proxy' => 'http://222.141.11.17:8118', //Set the timeout time in seconds 'timeout' => 30, // Fake HTTP headers 'headers' => [ 'Referer' => 'https://querylist.cc/', 'User-Agent' => 'testing/1.0', 'Accept' => 'application/json', 'X-Foo' => ['Bar', 'Baz'], 'Cookie' => 'abc=111;xxx=222' ] ]; $ql->get('http://httpbin.org/get',$urlParams,$opts); // echo $ql->getHtml(); ``` - Analog login ```php // Post login $ql = QueryList::post('http://xxxx.com/login',[ 'username' => 'admin', 'password' => '123456' ])->get('http://xxx.com/admin'); // Crawl pages that need to be logged in to access $ql->get('http://xxx.com/admin/page'); //echo $ql->getHtml(); ``` #### Submit forms Login GitHub ```php // Get the QueryList instance $ql = QueryList::getInstance(); // Get the login form $form = $ql->get('https://github.com/login')->find('form'); // Fill in the GitHub username and password $form->find('input[name=login]')->val('your github username or email'); $form->find('input[name=password]')->val('your github password'); // Serialize the form data $fromData = $form->serializeArray(); $postData = []; foreach ($fromData as $item) { $postData[$item['name']] = $item['value']; } // Submit the login form $actionUrl = 'https://github.com'.$form->attr('action'); $ql->post($actionUrl,$postData); // To determine whether the login is successful // echo $ql->getHtml(); $userName = $ql->find('.header-nav-current-user>.css-truncate-target')->text(); if($userName) { echo 'Login successful ! Welcome:'.$userName; }else{ echo 'Login failed !'; } ``` #### Bind function extension Customize the extension of a `myHttp` method: ```php $ql = QueryList::getInstance(); //Bind a `myHttp` method to the QueryList object $ql->bind('myHttp',function ($url){ // $this is the current QueryList object $html = file_get_contents($url); $this->setHtml($html); return $this; }); // And then you can call by the name of the binding $data = $ql->myHttp('https://toutiao.io')->find('h3 a')->texts(); print_r($data->all()); ``` Or package to class, and then bind: ```php $ql->bind('myHttp',function ($url){ return new MyHttp($this,$url); }); ``` #### Plugin used - Use the PhantomJS plugin to crawl JavaScript dynamically rendered pages: ```php // Set the PhantomJS binary file path during installation $ql = QueryList::use(PhantomJs::class,'/usr/local/bin/phantomjs'); // Crawl「500px」all picture links $data = $ql->browser('https://500px.com/editors')->find('img')->attrs('src'); print_r($data->all()); // Use the HTTP proxy $ql->browser('https://500px.com/editors',false,[ '--proxy' => '192.168.1.42:8080', '--proxy-type' => 'http' ]) ``` - Using the CURL multithreading plug-in, multi-threaded crawling GitHub trending : ```php $ql = QueryList::use(CurlMulti::class); $ql->curlMulti([ 'https://github.com/trending/php', 'https://github.com/trending/go', //.....more urls ]) // Called if task is success ->success(function (QueryList $ql,CurlMulti $curl,$r){ echo "Current url:{$r['info']['url']} \r\n"; $data = $ql->find('h3 a')->texts(); print_r($data->all()); }) // Task fail callback ->error(function ($errorInfo,CurlMulti $curl){ echo "Current url:{$errorInfo['info']['url']} \r\n"; print_r($errorInfo['error']); }) ->start([ // Maximum number of threads 'maxThread' => 10, // Number of error retries 'maxTry' => 3, ]); ``` ## Plugins - [jae-jae/QueryList-PhantomJS](https://github.com/jae-jae/QueryList-PhantomJS):Use PhantomJS to crawl Javascript dynamically rendered page. - [jae-jae/QueryList-CurlMulti](https://github.com/jae-jae/QueryList-CurlMulti) : Curl multi threading. - [jae-jae/QueryList-AbsoluteUrl](https://github.com/jae-jae/QueryList-AbsoluteUrl) : Converting relative urls to absolute. - [jae-jae/QueryList-Rule-Google](https://github.com/jae-jae/QueryList-Rule-Google) : Google searcher. - [jae-jae/QueryList-Rule-Baidu](https://github.com/jae-jae/QueryList-Rule-Baidu) : Baidu searcher. View more QueryList plugins and QueryList-based products: [QueryList Community](https://github.com/jae-jae/QueryList-Community) ## Contributing Welcome to contribute code for the QueryList。About Contributing Plugins can be viewed:[QueryList Plugin Contributing Guide](https://github.com/jae-jae/QueryList-Community/blob/master/CONTRIBUTING.md) ## Author Jaeger <JaegerCode@gmail.com> If this library is useful for you, say thanks [buying me a beer :beer:](https://www.paypal.me/jaepay)! ## Lisence QueryList is licensed under the license of MIT. See the LICENSE for more details.