, (*1)
QueryList
QueryList is a simple, elegant, extensible PHP Web Scraper (crawler/spider) ,based on phpQuery., (*2)
API Documentation, (*3)
中文文档, (*4)
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
- ....., (*5)
Requirements
Installation
By Composer installation:, (*6)
composer require jaeger/querylist
Usage
DOM Traversal and Manipulation
- Crawl「GitHub」all picture links
QueryList::get('https://github.com')->find('img')->attrs('src');
- Crawl Google search results
$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
});
$ql->find('#head')->append('
Append content
')->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:, (*7)
$data = QueryList::get('https://www.google.co.jp/search?q=QueryList')
// Set the crawl rules
->rules([
'title'=>array('h3','text'),
'link'=>array('h3>a','href')
])
->query()->getData();
print_r($data->all());
Results:, (*8)
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
// 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
//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;
$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();
// 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();
Login GitHub, (*9)
// 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:, (*10)
$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:, (*11)
$ql->bind('myHttp',function ($url){
return new MyHttp($this,$url);
});
Plugin used
- Use the PhantomJS plugin to crawl JavaScript dynamically rendered pages:
// 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 :
$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
View more QueryList plugins and QueryList-based products: QueryList Community, (*12)
Contributing
Welcome to contribute code for the QueryList。About Contributing Plugins can be viewed:QueryList Plugin Contributing Guide, (*13)
Author
Jaeger JaegerCode@gmail.com, (*14)
If this library is useful for you, say thanks buying me a beer :beer:!, (*15)
Lisence
QueryList is licensed under the license of MIT. See the LICENSE for more details., (*16)
Wallogit.com
