- function_exists: documentation ( source)
- strtotime: documentation ( source)
- gmdate: documentation ( source)
- date_default_timezone_get: documentation ( source)
<?php
defined("PHP_EOL") || define("PHP_EOL", "\n");
if (function_exists('date_default_timezone_get')) {
echo "System default timezone: ", date_default_timezone_get(), PHP_EOL;
}
$time = strtotime('1582-12-14');
echo $time . PHP_EOL;
$time526 = -12214109972;
$time430 = -12214108800;
$date526 = gmdate('Y-m-d H:i:s', $time526);
$date430 = gmdate('Y-m-d H:i:s', $time430);
echo $time526 . ' ' . $date526, PHP_EOL;
echo $time430 . ' ' . $date430, PHP_EOL;