关于各种PHP去除多余的HTML,Javascrit,Css标签 方法与实现程序,大家可进入参考.
1.不保留任何HTML标签,代码会是这样:echo strip_tags($str);
2.只保留
一个标签的话,只需要将
字符串写到strip_tags的第二个参数中,代码会是这样:echo strip_tags($str, "");
3.我们要保留
与…多个标签,只需要将多个标签用空格分隔后写到strip_tags的第二个参数中,代码会是这样:echo strip_tags($str, "");
4.保留所有标签,仅仅转义用addslashes(), stripslashes(), htmlspecialchars(), htmlentities(), nl2br() 等函数.
addslashes(), stripslashes() 一般是入数据库和出库的时候使用,以免变量中存储类似引号这些关键词,这样的话,本来是内容的部分却被数据库识别为标识符来执行,就会引起错误.
htmlspecialchars() 函数只用来转义少量HTML, &,双引号,大于号和小于号.并不会全部转换成 HTML 所定的 ASCII 转换
htmlentities() 本函数有点像 htmlspecialchars() 函数,但本函数会将所有 string 的字符都转成 HTML 的特殊字集字符串.不过在转换后阅读网页源代码的方面,会有很多困扰,尤其是网页源代码的中文字会变得不知所云,浏览器上看到的还是正常的.
自带函数去除html标记
strip_tags
去掉 HTML 及 PHP 的标记. 语法: string strip_tags(string str); 传回值: 字串 函式种类: 资料处理
实例代码如下:
$new = htmlspecialchars("/i", '', $content);
$content = preg_replace("/]*>/i",'', $content);
$content = preg_replace("//i",'', $content);
$content = preg_replace("/]*>/i",'', $content);
$content = preg_replace("//i",'', $content);
$content = preg_replace("/]*>/i",'', $content);
$content = preg_replace("/
/i",'', $content);
$content = preg_replace("/]*>/i",'', $content);
$content = preg_replace("//i",'', $content);
$content = preg_replace("/]*>/i",'', $content);
$content = preg_replace("//i",'', $content);
$content = preg_replace("/]*>/i",'', $content);
$content = preg_replace("//i",'', $content);
$content = preg_replace("/]*>/i",'', $content);
$content = preg_replace("//i",'', $content);
$content = preg_replace("/]*>/i",'', $content);
$content = preg_replace("//i",'', $content);
$content = preg_replace("/]*>/i",'', $content);
$content = preg_replace("//i",'', $content);
$content = preg_replace("//i",'', $content);//注释内容
$content = preg_replace("/]*-->/i",'', $content);//注释内容
$content = preg_replace("/style=.+?['|"]/i",'',$content);//去除样式
$content = preg_replace("/class=.+?['|"]/i",'',$content);//去除样式
$content = preg_replace("/id=.+?['|"]/i",'',$content);//去除样式
$content = preg_replace("/lang=.+?['|"]/i",'',$content);//去除样式
$content = preg_replace("/width=.+?['|"]/i",'',$content);//去除样式
$content = preg_replace("/height=.+?['|"]/i",'',$content);//去除样式
$content = preg_replace("/border=.+?['|"]/i",'',$content);//去除样式
$content = preg_replace("/face=.+?['|"]/i",'',$content);//去除样式
$content = preg_replace("/face=.+?['|"]/",'',$content);
$content = preg_replace("/face=.+?['|"]/",'',$content);
$content=str_replace( " ","",$content);
return $content;
}
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