[SR-Users] Understanding hashtable usage

Hi, I've got a piece of config code which should solve my problem, but i'm not getting the code. It involves hashtable module. Here it goes : modparam("htable", "htable", "a=>size=8;autoexpire=400") modparam("htable", "htable", "b=>size=8;autoexpire=31") Ok we have two hashtable , a and b, both has a "size" of 8. Then, else if(status == "503") { if($sht(a=>alarm::503) == $null) $sht(a=>alarm::503)=0; $sht(a=>alarm::$si::503) = $sht(a=>alarm::$si::503) + 1; } Here i get lost. what's "a=>alarm::503" and what's "a=>alarm::$si::503"? What's there difference? Next the code goes like :(its supposed be pseduocode) $elem = the size of the sht array. while($i < $elem) { $src_ip = $sht(source_ip_array)[$i]; $i = $i +1; sql_query("cb", "INSERT INTO alarm_data (create_date, type, total, description, source_ip) VALUES(NOW(), 'Too Many 503', $sht(a=>alarm::$src_ip::503), 'service unavailable', '$src_ip')"); } Now i have couple of problems with this code [1] what should be the value of $elem? [2] $sht(source_ip_array)[$i]? what should be the value of source_ip_array? The thing i'm trying to do is, when a 503 (Service unavailable) comes to kamailio, I want to insert it into a database which records this. -- -Cheers -Arif