php实现过滤表单提交中html标签的方法_PHP
本文实例讲述了php实现过滤表单提交中html标签的方法。分享给大家供大家参考。具体实现方法如下:
有时候我们做的简单评论功能会发现有提交很多的html标签,这些标签会导致页面有一些外连的情况,下面我们一起来看在php中过滤表单提交的html标签方法。
近评论中有一些机器人提交的post链接,都是一些垃圾评论。为了减少这种无谓的链接内容出现,其实是可以用php来删除表单POST提交的html标签,这样机器提交的信息也不会得到他们要的结果。而且可以减少来自seo/seo.html" target="_blank">搜索引擎的惩罚。
这里以去掉
标签为例:
某些情况我们需要去掉
标签,可以使用str_replace函数。
代码如下:
//取出br标记
$str=str_replace("
","",$str);
移除html标签:
可以使用strip_tags函数搞定。
代码如下:
$str= strip_tags($str);
封装成一个函数:
代码如下:
function removehtml($str){
$str=str_replace("
","",$str);
return strip_tags($str);
}
?>
希望本文所述对大家的php程序设计有所帮助。

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