Typecho1.2 可用的页面加载时间代码

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 /**
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     * 加载时间
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     * @return bool
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     */
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    function timer_start() {
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        global $timestart;
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        $mtime     = explode( ' ', microtime() );
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        $timestart = $mtime[1] + $mtime[0];
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        return true;
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    }
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    timer_start();
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    function timer_stop( $display = 0, $precision = 3 ) {
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        global $timestart, $timeend;
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        $mtime     = explode( ' ', microtime() );
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        $timeend   = $mtime[1] + $mtime[0];
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        $timetotal = number_format( $timeend - $timestart, $precision );
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        $r         = $timetotal < 1 ? $timetotal * 1000 . " ms" : $timetotal . " s";
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        if ( $display ) {
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            echo $r;
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        }
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        return $r;
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    }