Air-Quality-Web/logic/PerfFormatter.php

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<?php
namespace AirQuality;
/**
* Formats performance data to be sent in a HTTP header.
*/
class PerfFormatter {
function __construct() {
}
public static function format_perf_data($start_init, $start_handle, $start_encode) {
$now = microtime(true);
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$time_total = round(($now - $start_init) * 1000, 2);
$time_setup = round(($start_handle - $start_init) * 1000, 2);
$time_handle = round((($start_encode ?? $now) - $start_handle) * 1000, 2);
$time_encode = round(($now - $start_encode) * 1000, 2);
$result = "{$time_total}ms total | {$time_setup}ms setup, {$time_handle}ms handle";
if(!empty($start_encode))
$result .= ", {$time_encode}ms encode";
return $result;
}
}