I have this code
Dim x As String
x = "{'books':[{'title':'HarryPotter','pages':'134'}]}"
what i want to do is to convert it into array like we do in PHP using the json_decode(x,TRUE or FALSE) function
Your string x does not contain an array, but a single JSON object.
Just use a JSON library like Json.NET to parse your string:
Dim x = "{'books':[{'title':'HarryPotter','pages':'134'}]}"
Dim result = JsonConvert.DeserializeObject(x)
Console.WriteLine(result("books")(0)("title") & " - " & result("books")(0)("pages"))
Output:
HarryPotter - 134