为Typecho博客添加加载时间和网站运行时间

    function show_runtime()
    {window.setTimeout("show_runtime()",1000);X=new 
    Date("1/01/2021 00:00:00"); //初始建站时间修改此处
    Y=new Date();T=(Y.getTime()-X.getTime());M=24*60*60*1000;
    a=T/M;A=Math.floor(a);b=(a-A)*24;B=Math.floor(b);c=(b-B)*60;C=Math.floor((b-B)*60);D=Math.floor((c-C)*60);
    runtime_span.innerHTML="网站已运行: "+A+"天"+B+"小时"+C+"分"+D+"秒"}show_runtime();
    
#2、添加加载时间
在Cuteen/functions.php添加以下内容
    /**
     * 加载时间             以下为添加内容
     * 
    @return
     bool
     */
    function timer_start() {
        global $timestart;
        $mtime     = explode( ' ', microtime() );
        $timestart = $mtime[1] + $mtime[0];
        return true;
    }
    timer_start();
    function timer_stop( $display = 0, $precision = 3) {
        global $timestart, $timeend;
        $mtime     = explode( ' ', microtime() );
        $timeend   = $mtime[1] + $mtime[0];
        $timetotal = number_format( $timeend - $timestart, $precision );
        $r         = $timetotal < 1 ? $timetotal * 1000 . " ms" : $timetotal . " s";
        if ( $display ) {
            echo $r;
        }
        return $r;
    }

加载耗时：<?php echo timer_stop();?>