1. Go to this page and download the library: Download alapi/querylist library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
$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('<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')->...
$data = QueryList::get('https://www.google.co.jp/search?q=QueryList')
// Set the crawl rules
->rules([
'title'=>array('h3','text'),
'link'=>array('h3>a','href')
])
->query()->getData();
print_r($data->all());
// 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();
//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;
// 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();
// 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 !';
}
$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());
$ql->bind('myHttp',function ($url){
return new MyHttp($this,$url);
});
// 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'
])
$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,
]);
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