源代码:
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000><?php $winter=date_create("2013-12-31",timezone_open("Europe/Oslo")); $summer=date_create("2013-06-30",timezone_open("Europe/Oslo")); echo date_offset_get($winter) . " seconds. "; echo date_offset_get($summer) . " seconds."; ?></FONT> </body> </html> </HTML>
运行结果：
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000>3600 seconds. 7200 seconds.</FONT> </body> </html> </HTML>