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A PHP Service that you can use to filter keywords. It depons on a php extension named Swoole.
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以RPC方式提供关键词过滤服务，这个服务依赖php swoole扩展。
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swoole扩展让PHP有了直接提供HTTP服务的能力，使得庞大的字典可以常驻内存，避免原生php每次访问都需要重新载入字典所耗费的时间（随着字典条目的增加这个时间会越来越长）。
时间主要耗费在将字符串反序列化成数组上,这是由于php数组在内核的实现机制
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这里使用HTTP方式的原因主要是考虑到通用性，可以参考swoole官方的example修改成socket接口来实现同样的功能。
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具体的过滤实现代码则是从phpwind中提取出来
- php swoole extension
- swooleFramework
- phpwind filter class
- PHP 5.3.10 at least
- step 1 install swoole extension
pecl install swoole
vim /etc/php.ini
#add extension=swoole.so - step 2 dowload KeywordFilteringServie
git clone git@github.com:wosiwo/KeywordFilteringService.git-
step 3 create binary dict
this step will read original dict from /server/dict_all.txt ,then convert Plaintext into ASCII code and use it to build array with a struct which is conducive to search
cd KeywordFilteringService/dict
php createBinaryDict.php- step 4 start the httpserver
php server.php start-
step 5 now you can call it by service client
php tests/keyword_service.php
if the page show a [["wosiwo","0.8"]] , it shows that the service is running successfully.
##Tip:
To increase the transmission limit ,You may need to change your kernel parameters of your computer. In FreeBSD/MacOS:
sysctl -w net.local.dgram.maxdgram=8192
sysctl -w net.local.dgram.recvspace=200000 修改Unix Socket的buffer区尺寸other to see http://wiki.swoole.com/wiki/page/11.html