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HomeBackend DevelopmentPHP Tutorialphp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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