基于Double-Array Trie树的垃圾邮件过滤器的 php扩展，它可以检测文本消息中是否存在垃圾邮件_C语言php

php-ext-trie-filter =================== php extension for spam word filter based on Double-Array Trie tree, it can detect if a spam word exists in a text message. 关键词过滤扩展，用于检查一段文本中是否出现敏感词，基于Double-Array Trie 树实现。 ## 升级历史 ### 2017-08-08 1. 同时支持php5&php7 1. 新增方法: 1. trie_filter_read，从string中读取二进制字典数据 1. trie_filter_write，将当前对象导出成二进制string 1. trie_filter_delete，从当前对象中删除一个word ### 2013-06-23 1. trie_filter_search_all，一次返回所有的命中词 1. 修复内存泄露 ## 依赖库 [libdatrie-0.2.4 or later](http://linux.thai.net/~thep/datrie/datrie.html) ## 安装步骤 下面的$LIB_PATH为依赖库安装目录，$INSTALL_PHP_PATH为PHP安装目录。 ### 安装libdatrie ``` $ tar zxvf libdatrie-0.2.4.tar.gz $ cd libdatrie-0.2.4 $ make clean $ ./configure --prefix=$LIB_PATH $ make $ make install ``` ### 安装扩展 ``` $ $INSTALL_PHP_PATH/bin/phpize $ ./configure --with-php-config=$INSTALL_PHP_PATH/bin/php-config --with-trie_filter=$LIB_PATH $ make $ make install ``` 然后修改php.ini，增加一行：extension=trie_filter.so，然后重启PHP。 ## 使用示例 ``` <?php $arrWord = array('word1', 'word2', 'word3'); $resTrie = trie_filter_new(); //create an empty trie tree foreach ($arrWord as $k => $v) { trie_filter_store($resTrie, $v); } trie_filter_save($resTrie, __DIR__ . '/blackword.tree'); $resTrie = trie_filter_load(__DIR__ . '/blackword.tree'); $strContent = 'hello word2 word1'; $arrRet = trie_filter_search($resTrie, $strContent); print_r($arrRet); //Array(0 => 6, 1 => 5) echo substr($strContent, $arrRet[0], $arrRet[1]); //word2 $arrRet = trie_filter_search_all($resTrie, $strContent); print_r($arrRet); //Array(0 => Array(0 => 6, 1 => 5), 1 => Array(0 => 12, 1 => 5)) $arrRet = trie_filter_search($resTrie, 'hello word'); print_r($arrRet); //Array() trie_filter_free($resTrie); ``` # PHP版本 PHP 5.2 ~ 7.1. Windows is not support until now. ## License Apache License 2.0 ## 致谢 本项目是在[用于检测敏感词的 PHP 扩展](http://blog.anbutu.com/php/php-ext-trie-filter)的基础上改写的。