1	[2]	['aa']	Array(String)
2	[44,55]	['bb','cc']	Array(String)
1	[2]	[\'aa\']	String
2	[44,55]	[\'bb\',\'cc\']	String
1	[2]	[\'aa\']	String
2	[44,55]	[\'bb\',\'cc\']	String