System functions and operators related to classes and objects in PHP

: This article mainly introduces the system functions and operators of PHP related classes and objects. if you are interested in PHP tutorials, please refer to them.

System functions

• Class_exists ()
  Determine whether a class exists
• Interface_exists ()
  Determine whether an interface exists
• Get_class ()
  Obtains the class name of an object.
• Get_parent_class ()
  Obtains the class name of the parent class of an object.
• Get_class_methods ()
  Obtains all methods of a class and returns an index array.
• Get_class_vars ()
  Obtains all the attributes of a class. the subscript is the attribute name.
• Get_declared_classes ()
  Obtain all declared classes (including system classes)
• Is_object ()
  Determine whether the object is
• Get_object_vars ()
  Obtains all the attributes of an object, returns an array, and the subscript is the attribute name.

Operator

• New
• InstanceOf determines whether an object is an instance of a class (including inheritance ).

Classbee {}$ o = new bee (); if ($ oinstanceOf bee) {echo 'true ';}

'). AddClass ('pre-numbering '). hide (); $ (this ). addClass ('Has-numbering '). parent (). append ($ numbering); for (I = 1; I <= lines; I ++) {$ numbering. append ($ ('

'). Text (I) ;}; $ numbering. fadeIn (1700) ;}) ;}; script

The above introduces the system functions and operators of PHP related classes and objects, including some content, and hope to help those who are interested in PHP tutorials.