PHP去除多余的HTML,Javascrit,Css标签_PHP教程

$new = htmlspecialchars("Test", ENT_QUOTES);
echo $new;

?>

function get_enhtml($string){
$pattern=array ("''si",// 去掉 javascript
"']*?>.*?'si",// 去掉 HTML 标记
"'<[/!]*?[^<>]*?>'si",//去掉 HTML 标记
"'/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;
}