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This article mainly introduces the relevant knowledge of "what does $this in php refer to". The editor shows you the operation process through an actual case. The method of operation is simple, fast and practical. I hope this article "what does $this in php refer to" can help you solve the problem.

Description

1. $this is a reference to the current object. There is a pointer in $this that points to whoever calls it, and it can only be used inside the class.

2. $this cannot be used to access static properties because static properties are bound to the class.

Can only be accessed by static, self and parent.

Example

Class MyClass1 {public $public = 'Public'; protected $protected =' Protected'; private $private = 'Private'; function printHello () {echo $this- > public; echo $this- > protected; echo $this- > private;}} class MyClass2 extends MyClass1 {public $public =' Public2'; protected $protected = 'Protected2'; private $private =' Private2';} $obj = new MyClass1 (); $obj-> printHello (); / / Public Protected Private$obj2 = new MyClass2 () $obj2-> printHello (); / / Public2 Protected2 Private's content on "what does $this in php refer to" ends here. Thank you for your reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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