Online PHP editor | refs for MhkR8

<?php function measure_duration(callable $callback) { $start = microtime(true); call_user_func($callback); $duration = microtime(true) - $start; printf("Duration: %s\n\n", number_format($duration, 6)); } $timezone = new DateTimeZone('Europe/Berlin'); measure_duration(function() use($timezone) { printf("Default Value\n"); $timezone->getTransitions(); }); measure_duration(function() use($timezone) { $timestamp = 0; printf("Timestamp for %s\n", date('Y-m-d H:i:s', $timestamp)); $timezone->getTransitions($timestamp); }); measure_duration(function() use($timezone) { $timestamp = -62135596800; printf("Timestamp for %s\n", date('Y-m-d H:i:s', $timestamp)); $timezone->getTransitions($timestamp); });