<?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); $time_total = round(($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; } }