Implementation of PHP sensitive keyword filtering

This article mainly shares with you the implementation method of PHP sensitive keyword filtering, hoping to help everyone.

$badword = array(
    '张三','张三丰','张三丰田','上班'
);
$badword1 = array_combine($badword,array_fill(0,count($badword),'*'));
$bb = '我今天开着张三丰田上班';
$str = strtr($bb, $badword1);
echo $str;

$hei=array(
    '中国',
    '日本'
);
$blacklist="/".implode("|",$hei)."/i";
$str="中国一是一个很好的国家";
if(preg_match($blacklist, $str, $matches)){
    print "found:". $matches[0];
} else {
    print "not found.";
}

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