php 过滤敏感关键词
php 过滤敏感关键词
function badwords($content){ $keywords=M("config")->where("name='badwords'")->getField("value"); $badwords = explode(",",$keywords); //关键词的数组 $badword1 = array_combine($badwords,array_fill(0,count($badwords),'***')); $str = strtr($content, $badword1); $pattern = "/(\d{0})\d{5}(\d{0})/"; $replacement = "\$1****\$2"; $res = preg_replace($pattern, $replacement, $str); //这个是去除连续的数字 return $res; }