Checks if the first character after any whitespace in a piece of JSON text is an opening square bracket.
JSONGETARRAYSTART(p,l)
JSONGETARRAYSTART reads up to and including the first non-whitespace character in the JSON text buffer to see if there is a opening bracket ([) character. If there is, JSONGETARRAYEND returns the position of this character; otherwise a zero is returned indicating that it is not found.
Assuming buffer (pointed to by p) contains 4 blanks followed by [ {"Last": "Presley"}, Bytes = jsongetarraystart(p,l); will return 5 (position of [).
None.