PHP's system functions and operators for classes and objects

System functions

• Class_exists ()
  Determine if a class exists
• Interface_exists ()
  Determine if an interface exists
• Get_class ()
  Gets the class name where an object is located
• Get_parent_class ()
  Gets the class name of the parent class to which an object belongs
• Get_class_methods ()
  Get all methods of a class, return an indexed array
• Get_class_vars ()
  Get all properties of a class, subscript as property name
• Get_declared_classes ()
  Get all declared classes (including system classes)
• Is_object ()
  Determine if the object
• Get_object_vars ()
  Get all properties of the object, return an array, subscript the property name

Operator

• New
• Instanceof Determines whether an object is an instance of a class (including inheritance)

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The above describes the PHP related classes and objects of the system functions and operators, including the aspects of the content, I hope to be interested in PHP tutorial friends helpful.

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