Source Code : Functions to Check Data Type

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Functions to Check Data Type

 
Name                  Description

is_null()             Returns true if the value is null (no type)

is_string()           Returns true if the value is a string

is_int()              Returns true if the value is an integer

is_float()            Returns true if the value is a floating-point value

is_array()            Returns true if the value is an array

is_object()           Returns true if the value is an object

is_a()                Deprecated; checks if an object is a specified class

instanceof()          Checks if an object is an instance of a class
  
  

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