php 去除html标签 和 css样式

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$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
      
   $content = preg_replace("/style=.+?['|\"]/i",'',$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);//去除样式 只允许小写 正则匹配没有带 i 参数