[OpenSER-Users] avp_substr, re-index's lists?

Hello, Say I have something like the following: $avp(a[0]) = "27*" $avp(a[1]) = "22*" Then I run avp_substr like the following: avp_subst("$avp(a)/g", "/\*/[0-9]/g"); As you would expect it to simply strip * from the avp list values, instead it decides to rewrite the index in numerical order, so the avp's would now look like: [ BAD RESULTS ] $avp(a[0]) = "22"; $avp(a[1]) = "27"; however the [ EXPECTED RESULTS ] $avp(a[0]) = "27"; $avp(a[1]) = "22"; Could someone please elaborate on why OpenSER would re-numerate the list index on a simple avp_substr, also any ideas on how I can get around this and stop this from happening? Thanks!