~~~
function getElapsedTime(int $decimals = 2)//时间
{
return number_format(microtime(true) - request()->server('REQUEST_TIME_FLOAT'), $decimals) . ' s';
}
function getMemoryUsage($precision = 2)//内存
{
$size = memory_get_usage(true);
$unit = ['b', 'kb', 'mb', 'gb', 'tb', 'pb'];
return round($size / pow(1024, ($i = floor(log($size, 1024)))), $precision) . ' ' . $unit[$i];
}
~~~
