get_json_int

Parse and retrieve the integer content of the specified path in the JSON string. Where json_path must start with the $symbol and use. as the path splitter. If the path contains…, double quotation marks can be used to surround it. Use [] to denote array subscripts, starting at 0. The content of path cannot contain “,[and]. If the json_string format is incorrect, or the json_path format is incorrect, or matches cannot be found, NULL is returned.

1. Get the value of key as “k1”

1. Get the first element in an array whose secondary path is k1. key - > K2