Hello, $var(...) don't hold null values, they start initialed to 0 and they are reset to 0 (when assigning $null to them) -- this is the design from the beginning which brings benefits in many situation when one doesn't get a chance to init.
If you want a similar variable that works with null, then use $vn(...): - https://www.kamailio.org/wiki/cookbooks/5.0.x/pseudovariables#vn_name_-_private_memory_variables_null Cheers, Daniel On 27/03/2017 15:22, Ginhoux, Patrick wrote: > > Hi, > > > > I’m continue my job to ‘migrate’ my 3.3.1 kamailio.cfg script on a > RHEL 6.2 server to the 5.0.x kamailio version on a RHEL 7.1 server, > and I encounter a major problem with the ‘== $null’ test in the script. > > > > My original script (3.3.1) contains this sequence : > > > > $var(i:rangeInx)=0; > > $var(i:maxRangeInx) = $sht(mbxrangeHash=>"maxrange"); > > xlog(" imbxRangeInx value before test : '$var(i:maxRangeInx)' "); > > if ($var(i:maxRangeInx)==$null) { > > $var(i:maxRangeInx)=99; > > } > > xlog(" imbxRangeInx after test : '$var(i:maxRangeInx)' "); > > > > èThe results are : > > imbxRangeInx value before test : ‘0’ > > imbxRangeInx value after test : ‘99’ > > > > I run the same script on my new server and I get ‘0’ before and after > the test. > > > > I attempted another kind of test to try to figure out where the > problem is. So I write the simple test (with kamailio 5.0.x) : > > > > $var(i:rangeInx)=0; > > $var(i:maxRangeInx) = $sht(mbxrangeHash=>"maxrange"); > > $var(toto) = $null; > > if ($var(toto) == $null) > > xlog ("toto true"); > > else > > xlog ("toto false"); > > > > The result I got is always ‘toto false’. > > > > So it appears to me that the test ‘== $null’ doens’ that gives a good > result with kamailio 3.3.1, doesn’t return the same with kamailio 5.0.x. > > > > That is a major issue for me and it let me confused about the > possibility to move to kamailio 5.0.x. > > > > Have people an idea / explanation, why this issue ? > > > > Cordialement > > Patrick GINHOUX > > > > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com
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