2008/7/31 <[EMAIL PROTECTED]>
>
> Hi everybody!
>
> This might be the right mailing list and it might not be.
>
> I'm having a problem getting date_diff to work.
> I know date_diff accepts 2 DateTime objects and returns a DateInterval which
> I var_dump but it shows nothing
> Help is required!
>
> Regards
> Andy
>
> Heres my code:
>
> <?php
>
> $date = new DateTime("28-July-2008");
> $other = new DateTime("31-July-2008");
>
> $diff = date_diff($date, $other);
>
> echo '<br />date: ';
> var_dump($date);
>
> echo '<br /><br />other: ';
> var_dump($other);
>
> echo '<br /><br />diff: ';
> var_dump($diff);
>
> echo '<br /><br />get_class_methods - DateInterval : ';
> $class_methods = get_class_methods(new DateInterval('P2Y2M2D'));
> foreach ($class_methods as $method_name) {
> echo "$method_name(), ";
> }
>
> echo '<br /><br />get_class_methods - DateTime : ';
> $class_methods = get_class_methods(new DateTime("31-July-2008"));
> foreach ($class_methods as $method_name) {
> echo "$method_name(), ";
> }
>
> ?>
>
> Heres my output:
>
>
> date: object(DateTime)#1 (3) { ["date"]=> string(19) "2008-07-28 00:00:00"
> ["timezone_type"]=> int(3) ["timezone"]=> string(13) "Europe/London" }
>
> other: object(DateTime)#2 (3) { ["date"]=> string(19) "2008-07-31 00:00:00"
> ["timezone_type"]=> int(3) ["timezone"]=> string(13) "Europe/London" }
>
> diff: object(DateInterval)#3 (0) { }
>
> get_class_methods - DateInterval : __construct(), format(),
> createFromDateString(),
>
> get_class_methods - DateTime : __construct(), __wakeup(), __set_state(),
> createFromFormat(), getLastErrors(), format(), modify(), add(), sub(),
> getTimezone(), setTimezone(), getOffset(), setTime(), setDate(),
> setISODate(), setTimestamp(), getTimestamp(), diff(),
>
>
<?php
$date = new DateTime("28-July-2008");
$other = new DateTime("31-July-2008");
$interval = date_diff($date, $other, True);
date_add($date, $interval);
var_dump($date);
date_add($date, $interval);
var_dump($date);
outputs ...
object(DateTime)#1 (3) {
["date"]=>
string(19) "2008-07-31 00:00:00"
["timezone_type"]=>
int(3)
["timezone"]=>
string(13) "Europe/London"
}
object(DateTime)#1 (3) {
["date"]=>
string(19) "2008-08-03 00:00:00"
["timezone_type"]=>
int(3)
["timezone"]=>
string(13) "Europe/London"
}
So, I can get the difference of 2 dates into an interval. I can then
add that interval to other dates.
I can't determine the value of the interval though. No interface for that.
--
-----
Richard Quadling
Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731
"Standing on the shoulders of some very clever giants!"
