PHP Object-Oriented Magic method Chinese description _php Tutorial

1.__construct ()

Instantiating an object is called automatically. Call __construct when __construct and a function that has the class name as the function name are present, and the other is called without a back.

The function with the class name as the function name is the old version of the constructor.

2.__destruct ()

When an object is deleted or an object operation ends, it is called.

3.__call ()

object to invoke a method. If the method does not exist, call __call this method

4.__get ()

Reads an object property, if the object property is private, it is called

5.__set ()

When assigning a value to an object property, it is called if the property is private.

6.__tostring ()

It is called when an object is printed.

7.__clone ()

Called when cloning an object, such as: $a =new test (); $a 1=clone $a;

8.__sleep ()

Serialize was called before, if the object is larger, want to cut something in the serialization can use it.

9.__wakeup ()

Unserialize is called to do some initialization of the object.

10.__isset ()

Detects whether a property of an object exists and is called when the detected property is private.

11.__unset ()

Deleting an object property is called if the deleted object property is private.

12.__set_state ()

Called when the Var_export is called. Use the return value of __set_state as the return value of Var_export.

13.__autoload ()

When an object is instantiated, the method is dropped if the corresponding class does not exist.

http://www.bkjia.com/PHPjc/736805.html www.bkjia.com true http://www.bkjia.com/PHPjc/736805.html techarticle 1.__construct () instantiates an object that is automatically called. Call __construct when __construct and a function that has the class name as the function name are present, and the other is called without a back. The class name is the function name of the letter ...

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