Example parsing PHP extends class inheritance _php tutorial

PHP extends class inheritance code example:

2. < ? PHP
4. Class a{
6. public $x;
8. Public $y;
10. function __construct ($x=0, $y=0 ){
12. $this- > x = $x;
14. $this- > y = $y;
16. }
18. function Getx () {
20. return $this- > x;
22. }
24. function Gety () {
26. return $this- > y;
28. }
30. function __destruct () {}
32. }
34. Class A2 extends a{}
    /*extends is an inheritance function */
36. $ B2 = New A2 (10,10);
38. echo $b 2- > getx (). " <br> ";
40. echo $b 2- > gety ();
42. ?>

The above-described content is the PHP extends class inherits all the implementation steps.

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