[SR-Users] can you define an array and loop in kamailio.cfg

hello all, Can you define an array and a loop in kamailio.cfg not work !!!! $var(i) = 0; tab[0]="192.168.0.2"; tab[1]="192.168.0.3 »; while($var(i)<2) { $var(rip) = $tab[$var(i)]; $uac_req(method)="REGISTER »; $uac_req(ruri)="sip:" + $var(rip) + ":" + $sel(cfg_get.asterisk.bindport); $uac_req(furi)="sip:" + $au + "@" + $var(rip); $uac_req(turi)="sip:" + $au + "@" + $var(rip); $uac_req(hdrs)="Contact: <sip:" + $au + "@" + $sel(cfg_get.kamailio.bindip) + ":" + $sel(cfg_get.kamailio.bindport) + ">\r\n"; if($sel(contact.expires) != $null) $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $sel(contact.expires) + "\r\n"; else $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n »; uac_req_send(); }