[OpenSIPS-Users] Basic sum question

[Social Boh]

Hello list

how can I add a 1 to a script variable like:

$var(cs) = $cs{s.int} + 1;

Result:

ERROR:core:eval_elem: invalid string operands
WARNING:core:do_assign: no value in right expression at 
/etc/opensips/opensips.cfg:205

Thank you

Regards

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