Hi,
Is one of these methods specifically preferred over another? The first
seems more explicit, but seems to me that OpenSIPS would have to parse
the param list twice - once to check whether the param exists and then
again to get the value. Is the second method acceptable?
Method 1:
if ($(var(pstring){param.exists,customparam})) {
$var(pval) = $(var(pstring){param.value,customparam});
# do other stuff
}
Method 2:
$var(pval) = $(var(pstring){param.value,customparam});
if ($var(pval) != NULL {
# do other stuff
}
There is a functional difference between them that in method 1, if the
param doesn't exist then $var(pval) doesn't get set (it might already
exist with a different value), but if this didn't matter in the context
of the code, is one way preferred over the other?
Cheers,
Kingsley.
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