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pthreads多线程数据采集_PHP教程

php中文网

发布： 2016-07-13 10:42:07

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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：

立即学习“PHP免费学习笔记（深入）”；

　　　　https://github.com/krakjoe/pthreads

　　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。

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　　　　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

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

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