In my feeble attempt to keep track of login session timeouts I have the
following code in my login section of my program:
$sql = "UPDATE subscriber
SET _sessexp = 'DATE_ADD(NOW(),INTERVAL 15 MINUTES)'
WHERE _userid = '$_userid'
LIMIT 1";
and when run I see NO ERRORS. However, either the field in the DB doesn't
change OR this expression is generating a value of '0' for the _sessexp
field.
I've tried using the ADDTIME function as an alternative but get the same
results. I'm kind of at a loss.
Any ideas as to why this is NOT behaving as I expect it to?
What I am attempting to do is to take the CURRENT TIME and add 15 minutes to
it and update a field in the database record. That simple!
Bob 3 2645
bobmct wrote:
In my feeble attempt to keep track of login session timeouts I have
the following code in my login section of my program:
$sql = "UPDATE subscriber
SET _sessexp = 'DATE_ADD(NOW(),INTERVAL 15 MINUTES)'
WHERE _userid = '$_userid'
LIMIT 1";
and when run I see NO ERRORS. However, either the field in the DB
doesn't change OR this expression is generating a value of '0' for
the _sessexp field.
I've tried using the ADDTIME function as an alternative but get the
same results. I'm kind of at a loss.
Any ideas as to why this is NOT behaving as I expect it to?
What I am attempting to do is to take the CURRENT TIME and add 15
minutes to it and update a field in the database record. That simple!
First of all, you try to add the string 'DATE_ADD(NOW(),INTERVAL 15
MINUTES)' to a date field, which is invalid and will result to 0. Remove the
quotes.
Grtz,
--
Rik Wasmus
Rik wrote:
bobmct wrote:
>In my feeble attempt to keep track of login session timeouts I have the following code in my login section of my program:
$sql = "UPDATE subscriber SET _sessexp = 'DATE_ADD(NOW(),INTERVAL 15 MINUTES)' WHERE _userid = '$_userid' LIMIT 1";
and when run I see NO ERRORS. However, either the field in the DB doesn't change OR this expression is generating a value of '0' for the _sessexp field.
I've tried using the ADDTIME function as an alternative but get the same results. I'm kind of at a loss.
Any ideas as to why this is NOT behaving as I expect it to?
What I am attempting to do is to take the CURRENT TIME and add 15 minutes to it and update a field in the database record. That simple!
First of all, you try to add the string 'DATE_ADD(NOW(),INTERVAL 15
MINUTES)' to a date field, which is invalid and will result to 0. Remove
the quotes.
Grtz,
Well, OK;
Already tried that first. With/without, single/double, doesn't seem to
matter.
Re-tried your suggestion and the result STILL results in ONLY ZERO in the
field. However, can a time function's result be put into a bigint field?
Bob
bobmct wrote:
Rik wrote:
>bobmct wrote:
>>In my feeble attempt to keep track of login session timeouts I have the following code in my login section of my program:
$sql = "UPDATE subscriber SET _sessexp = 'DATE_ADD(NOW(),INTERVAL 15 MINUTES)' WHERE _userid = '$_userid' LIMIT 1";
and when run I see NO ERRORS. However, either the field in the DB doesn't change OR this expression is generating a value of '0' for the _sessexp field.
I've tried using the ADDTIME function as an alternative but get the same results. I'm kind of at a loss.
Any ideas as to why this is NOT behaving as I expect it to?
What I am attempting to do is to take the CURRENT TIME and add 15 minutes to it and update a field in the database record. That simple!
First of all, you try to add the string 'DATE_ADD(NOW(),INTERVAL 15 MINUTES)' to a date field, which is invalid and will result to 0. Remove the quotes. Grtz,
Well, OK;
Already tried that first. With/without, single/double, doesn't seem
to matter.
Re-tried your suggestion and the result STILL results in ONLY ZERO in
the field.
DATE_ADD(NOW(), INTERVAL 15 MINUTE)
NO 's' after MINUTE
However, can a time function's result be put into a
bigint field?
I'm not sure what database you use, but in recent MySQL versions it will
return a format of yyyy-mm-dd hh:mm:ss, not an integer.
Do you by any chance mean UNIX_TIMESTAMP(DATE_ADD(NOW(), INTERVAL 15
MINUTE))?
Grtz,
--
Rik Wasmus This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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