Data Type Php

Data Type                Returned by gettype                     Set by settype
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Array                    Array                                   Array
Boolean                  Boolean                                 Boolean
Double                   Double                                  Double
Integer                  Integer                                 Integer
Null                     Null                                    N/A
Object                   Object                                  Object
Resource                 Resource                                N/A
String                   String                                  String
Unknown                  Unknown type                            N/A