pthreads multi-threaded data collection, pthreads data collection_PHP tutorial

pthreads multi-threaded data collection, pthreads data collection

The multi-threading that used curl in the past was not a real multi-threading, it was just a simulated multi-threading, now it is implemented using pthreads Multi-threading in the true sense.

Download:

Under windows:

　http://windows.php.net/downloads/pecl/releases/pthreads/0.0.45/

Under mac, unix, linux:

　https://github.com/krakjoe/pthreads

Installation method:

Under windows:

Extract the pthreadVC2.dll and php_pthreads.dll files, put the vc2 file into the same directory as php.exe, and put php_pthreads.dll into the extension directory.

Modify the php.ini file and add extension=php_pthreads.dll

Modify the Apache configuration file httpd.conf and add LoadFile "yourpath/php/pthreadVC2.dll"

Under mac, unix, linux:

For details, please refer to Brother Yan’s blog http://blog.s135.com/pthreads/

Calling method:

For specific usage, you can also refer to Brother Yan’s blog http://blog.s135.com/pthreads/

Combined with the previous get_html, the class can also be implemented in this way

 1 class threads extends Thread
 2 {
 3     public $url = '';
 4     public $options = array();
 5     public $data;
 6 
 7     public function __construct($url, $options = array()){
 8         $this->url = $url;
 9         $this->options = $options;
10     }
11 
12     public function run(){
13         if(!empty($this->url)){
14             $this->data = $this->get_html($this->url, $this->options);
15         }
16     }
17 
18     public function get_html($url,$options = array()){
19         if(empty($options)){
20             $options[CURLOPT_RETURNTRANSFER] = true;
21             $options[CURLOPT_TIMEOUT] = 5;
22         }
23         $ch = curl_init($url);
24         curl_setopt_array($ch,$options);
25         $html = curl_exec($ch);
26         curl_close($ch);
27         if($html === false){
28             return false;
29         }
30         return $html;
31     }
32 }

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