帝国cms网站标题关键词描述自动加密转换成乱码，前台显示正常，查看源码是乱码

1、在e/class/userfun.php里添加自定义函数

error_reporting(E_ERROR); 
function unicode_encode($str){
	preg_match_all('/./u',$str,$matches);
	$unicodeStr = "";
	foreach($matches[0] as $m){
		//拼接
		$unicodeStr .= "&#".base_convert(bin2hex(iconv('UTF-8',"UCS-4",$m)),16,10).';';
	}
	$end = strrpos($unicodeStr, '#')+6;
	$unicodeStr = substr($unicodeStr, 0, $end);
	return $unicodeStr.';';
}

首页模板调用方式：

<title><?=unicode_encode($public_r[sitename])?></title>
[e:loop={'select siteintro,sitekey from [!db.pre!]enewspublic',1,24,0}]
<meta name="keywords" content="<?=unicode_encode($bqr[sitekey])?>" />
<meta name="description" content="<?=unicode_encode($bqr[siteintro])?>" />

列表页：

<?
$classid=$GLOBALS[navclassid];
$cinfo=$empire->fetch1("select classname,classpagekey,intro from {$dbtbpre}enewsclass where classid = $classid");
?>
<title><?=unicode_encode($cinfo[classname])?> - <?=unicode_encode($public_r[sitename])?></title>
<meta name="keywords" content="<?=unicode_encode($cinfo[classpagekey])?>" />
<meta name="description" content="<?=unicode_encode($cinfo[intro])?> " />

内容页：

<title><?=unicode_encode($navinfor[title])?> - <?=unicode_encode($public_r[sitename])?></title>
<meta name="keywords" content="<?=unicode_encode($navinfor[keyboard])?>" />
<meta name="description" content="<?=unicode_encode($navinfor[smalltext])?>" />

效果：