14 Jan
2013
14 Jan
'13
12:59 p.m.
Hi,
how should I check if the value is set?
if ($avp(s:test) == "") {
or is there any null keyword ? If so, does it work for $avp, $sht, $var and
$shv ?
Thanks,
Mino
14 Jan
14 Jan
1:44 p.m.
if(defined $var(x))
Or, if checking for empty value:
if(strempty($var(x))
Mino Haluz <mino.haluz(a)gmail.com> wrote:
Hi,
how should I check if the value is set?
if ($avp(s:test) == "") {
or is there any null keyword ? If so, does it work for $avp, $sht, $var
and
$shv ?
Thanks,
Mino
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Sent from my mobile, and thus lacking in the refinement one might expect from a
fully-fledged keyboard.
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
3:16 p.m.
and how to check null value taken from database?
$dbr(ra=>[0,0]) == ?
On Mon, Jan 14, 2013 at 1:44 PM, Alex Balashov <abalashov(a)evaristesys.com>wrote;wrote:
if(defined $var(x))
Or, if checking for empty value:
if(strempty($var(x))
Mino Haluz <mino.haluz(a)gmail.com> wrote:
Hi,
how should I check if the value is set?
if ($avp(s:test) == "") {
or is there any null keyword ? If so, does it work for $avp, $sht, $var
and
$shv ?
Thanks,
Mino
------------------------------------------------------------------------
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
--
Sent from my mobile, and thus lacking in the refinement one might expect
from a fully-fledged keyboard.
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
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3:25 p.m.
On 01/14/2013 09:16 AM, Mino Haluz wrote:
and how to check null value taken from database?
$dbr(ra=>[0,0]) == ?
That depends on what you truly mean by "null" value. :-)
If you want to check for no rows returned, you can check the value of
$dbr(ra=>rows) to get a count, e.g.
if($dbr(ra=>rows) < 1)
if(! $dbr(ra=>rows))
If you are looking to test for a truly NULL value as opposed to an empty
string, I suspect that varies with database API. I use db_postgres, and
if I remember correctly, 'defined' works for that:
if(! defined $dbr(ra=>[0,0]))
That's IIRC. I am not 100.0% sure.
However, other DB interface implementations may return an empty string
even in case of a null value, in which case strempty() may be the better
test.
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
5:50 p.m.
I believe what you are looking for is $null
if($avp(s:test) == $null){
}
On Mon, Jan 14, 2013 at 3:59 AM, Mino Haluz <mino.haluz(a)gmail.com> wrote:
Hi,
how should I check if the value is set?
if ($avp(s:test) == "") {
or is there any null keyword ? If so, does it work for $avp, $sht, $var
and $shv ?
Thanks,
Mino
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4 comments
3 participants
participants (3)
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Alex Balashov -
Brandon Armstead -
Mino Haluz