/**
* @todo 敏感词过滤,返回结果
* @param array $list 定义敏感词一维数组
* @param string $string 要过滤的内容
* @return string $log 处理结果
*/
function sensitive($list, $string){
$count = 0; //违规词的个数
$sensitiveWord = ''; //违规词
$stringAfter = $string; //替换后的内容
$pattern = "/".implode("|",$list)."/i"; //定义正则表达式
if(preg_match_all($pattern, $string, $matches)){ //匹配到了结果
$patternList = $matches[0]; //匹配到的数组
$count = count($patternList);
$sensitiveWord = implode(',', $patternList); //敏感词数组转字符串
$replaceArray = array_combine($patternList,array_fill(0,count($patternList),'*')); //把匹配到的数组进行合并,替换使用
$stringAfter = strtr($string, $replaceArray); //结果替换
}
$log = "原句为 [ {$string} ]<br/>";
if($count==0){
$log .= "暂未匹配到敏感词!";
}else{
$log .= "匹配到 [ {$count} ]个敏感词:[ {$sensitiveWord} ]<br/>".
"替换后为:[ {$stringAfter} ]";
}
return $log;
}
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