What is difference PHP date vs gmdate

When we use date and gmdate, they may get different date based on your time zone. For example,

php code:


    echo date_default_timezone_get ().PHP_EOL;
    echo 'Result with date("M d Y H:i:s"):'.PHP_EOL;
    echo date("M d Y H:i:s").PHP_EOL;
    echo 'Result with gmdate("M d Y H:i:s"):'.PHP_EOL;
    echo gmdate("M d Y H:i:s").PHP_EOL;

Result:


Asia/Tokyo
Result with date("M d Y H:i:s"):
Feb 13 2013 09:00:05
Result with gmdate("M d Y H:i:s"):
Feb 13 2013 00:00:05

Reason:

1. date is that the time returned is your time zone. Usually you may change it by using date_default_timezone_set('your timezone');

2. gmdate is that  the time returned is Greenwich Mean Time (GMT).