pthreads多线程数据采集
以前使用curl的多线程并不是真正的多线程,只是一种模拟的多线程,现在使用pthreads来实现真正意义上的多线程。
下载:
windows下:
http://windows.php.net/downloads/pecl/releases/pthreads/0.0.45/
mac、unix、linux下:
https://github.com/krakjoe/pthreads
安装方式:
windows下:
解压得到pthreadVC2.dll和php_pthreads.dll文件,把vc2文件放到php.exe同级目录,把php_pthreads.dll放到扩展目录下。
修改php.ini文件 添加extension=php_pthreads.dll
修改Apache配置文件httpd.conf 添加LoadFile "yourpath/php/pthreadVC2.dll"
mac、unix、linux下:
具体可参考宴哥的博客http://blog.s135.com/pthreads/
调用方式:
具体的用法也可以参考宴哥的博客http://blog.s135.com/pthreads/
结合以前的get_html也可以这样来实现类
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 }