LUA splits strings according to special characters; Hmget using Redis

The recent talk project used part of Lua, which was used to request very high requests, to block back at the nginx level, and to invoke a large number of PHP processes in the province.
Since LUA has not been used before, the development process has encountered a number of small skill points, recorded.

1.lua string Split function

The code is as follows	Copy Code
Example --string partition function, split by | function Lua_string_split (str, Split_char) Local sub_str_tab = {}; For mu_id in String.gmatch (str, "(%d+) |*") do Table.insert (Sub_str_tab, mu_id) End return sub_str_tab; End --string Split function end

2. Use Lua's Reids batch acquisition method. For example: Hmget
First, integrate all the field into a table, such as: Field_table.

Example

The code is as follows	Copy Code
Redis:hmget (Key, Unpack (field_table))