Identical to the date() function except that
the time returned is Greenwich Mean Time (GMT). For example, when
run in Finland (GMT +0200), the first line below prints "Jan 01
1998 00:00:00", while the second prints "Dec 31 1997 22:00:00".
Example 1. gmdate() example
<?php echo date("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 1998)); echo gmdate("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 1998)); ?>
Note:
Prior to PHP 5.1.0, negative timestamps (dates before 1970) didn't work on
some systems (Windows, for example).
