It looks like, to me, that he needs an array of Tries (one Trie for each player).
Depending on your actual implementation it's possible that you could just use an Enum/data structure and an array (probably best if your list of keys is not too many).
Something like this:
PHP Code:
enum KEYS {
KEY1[32],
KEY2[32]
}
new my_array[33][KEYS]
client_print(id, print_chat, my_array[id][KEY1])
Correct me if I'm wrong on the data structure.
If he uses Tries I don't think he would need to traverse it from his explaination.
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