一次回复评论的简单过滤总结；php过滤；preg_replace();过滤关键词，过滤邮箱，过滤链接，过滤QQ，手机号；

Filter.php

	<?php 
	$comment=get_var("comment","POST");
	if(!empty($comment)){
		/* 回复过滤 @zm 2014-1-12 Begin */
		$commentFilter['0']='神马';
		$commentFilter['1']='浮云';
		$commentFilter['2']='QQ';
		$commentFilter['3']='qq';
		$commentFilter['4']='扣扣';
		$commentFilter['5']='秋秋';
		$commentFilter['6']='手机';
		$comment=str_replace($commentFilter,'我爱中国',$comment);
	    //过滤邮箱 2014-1-20
    	$comment=preg_replace("/([a-z0-9]*[-_]?[a-z0-9]+)*@([a-z0-9]*[-_]?[a-z0-9]+)+[\.][a-z]{2,3}([\.][a-z]{2})?/i","",$comment);
		  //过滤链接  2014-1-20
	    $comment=preg_replace("/([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}/i","",$comment);
	    //过滤QQ，手机号  2014-1-20
	    $comment=preg_replace("/[0-9]{5,}/","",$comment);
		/* 回复过滤 2014-1-12 End */
		$sql="update wooyun_bugs set corpreply='$comment' where bugid={$bug[bugid]}";
		$db->query($sql);
		showsuccess("操作成功");
	}else{
		showerror("操作失败");
	}
	?>