function clear_word($contents)
{
// 载入词典，成功返回一个 Trie_Filter 资源句柄，失败返回 NULL
return $contents;
if ($contents == '') {
return '';
}
$file = trie_filter_load('./word-filter.dic');
// 检测文本中是否含有词典中定义的敏感词(假设敏感词设定为：‘敏感词’)
$res = trie_filter_search($file, $contents);
var_dump($res);
if (empty($res) == false) {
trie_filter_free($file);
//最后别忘记调用free
return '';
}
//$res1 = trie_filter_search_all($file, $str1); // 一次把所有的敏感词都检测出来
//$res2 = trie_filter_search($file, $str2);// 每次只检测一个敏感词
trie_filter_free($file);
//最后别忘记调用free
return $contents;
}
//实际相当于 array('WORD', 'KEY', '00000000');
trie_filter_save($resTrie, __DIR__ . '/blackword.tree');
$resTrie = trie_filter_load(__DIR__ . '/blackword.tree');
$strContent = 'hello wo rd WORD kEy 0123456789';
$arrRet = trie_filter_search_all($resTrie, $strContent, TRIE_FILTER_UP | TRIE_FILTER_SP | TRIE_FILTER_NUM);
//小写转为大写 数字转为0 忽略文本中的空格
//实际相当于 'HELLOWORDWORDKEY0000000000'
print_all($strContent, $arrRet);
function print_all($str, $res)
{
echo "\ntext:{$str}\n", "\nmatch ", count($res) / 3, "\n";
for ($i = 0, $c = count($res); $i < $c; $i += 3) {
echo 'id:', $res[$i + 2], ' -> ', substr($str, $res[$i], $res[$i + 1]), "\n";
}
}
trie_filter_free($resTrie);
/*输出为
save key
id:0 -> Key
id:1 -> w ord
id:2 -> 12345678
text:hello wo rd WORD kEy 0123456789
match 6
id:1 -> wo rd
id:1 -> WORD
id:0 -> kEy
id:2 -> 01234567
id:2 -> 12345678
public function __destruct()
{
if (is_resource($this->trie)) {
trie_filter_free($this->trie);
}
}
