What is the easiest way to update a date?
In my database I have a field called mydate that is setup as a timestamp datatype. (It as to be this datatype).
My dates are listed as either:
2013-07-25 00:00:00
or
0000-00-00 00:00:00
Meaning they either have a data or just zeroes, but never empty.
Edit: Thank you all! I sort of combined all that you said and made it work.
Now lets say I wanted to increase any give date with 10 days how would I accomplish that?
The first one, July 25th 2013 would become 2013-08-04 00:00:00 and the other would become 2013-06-18 00:00:00 (at the time of posting it's June the 8th).
How to?
Something along these lines:
if(mydate_from_db > present_date){
mydate_from_db = mydate_from_db + day('10')
}
else{
mydate_from_db = present_date + day('10')
}
Update mysql with mydate where relevant.
With PHP you can do something like:
if($mydate_from_db > $present_date){
$mydate_from_db = strtotime($mydate_from_db, '+ 10 days');
} else {
$mydate_from_db = strtotime($present_date, '+ 10 days');
}
Or you can do it with mysql like:
UPDATE yourtable SET mydate = IF(mydate = '0000-00-00 00:00:00', '2013-06-18 00:00:00', DATE_ADD(mydate, INTERVAL 10 DAY));
You can do it in MySql directly:
UPDATE
my_table
SET
my_date = my_date + INTERVAL 10 DAY
WHERE
DATE(my_date) >= '2013-06-01'
if(mydate_from_db > present_date)
{
$date = strtotime(mydate_from_db );
$date = strtotime("+10 day", $date);
echo date('M d, Y', $date);
}
else
{
$date=date();
$date = strtotime("+10 day", $date);
echo date('M d, Y', $date);
}
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