PHP将时间戳转换为iso-8601和UTC

$timestamp = 1506086214;
 
// set the default timezone to use. Available since PHP 5.1
date_default_timezone_set('UTC');
 
// ISO 8601 (does NOT include microseconds)
echo date("c", $timestamp) . PHP_EOL;
 
// custom format e.g. 2017-09-23T01:08:36.6437128Z
echo date("Y-m-dTH:i:s.uZ", $timestamp) . PHP_EOL;
//快捷方法
echo gmdate("Y-m-dTH:i:s.000Z")