PHP Multiple Inheritance with Interfaces

Question

I\'m trying to understand how using interfaces gives me multiple inheritance as I\'ve been googling.

class A
{
 function do1(){}
 function do2(){}
 function          


        

Answer 1

Multiple inheritance is possible only for Interfaces!

such as my output for it:

php > interface A{};
php > interface B{};
php > interface C extends A,B{};
php > class D implements C{};
php > $d = new D();
php > echo ($d instanceof A);
1

• I created A and B interfaces and C interface extends them.
• After we have D class which implements C interface
• Finally, I ask if $d object is instanceof A interface, yeah it's true

For the lulz, I try to create E class which extends D and stdclass classes and get error!

php > class E extends D, stdclass{};
PHP Parse error:  syntax error, unexpected ',', expecting '{' in php shell code on line 1

Parse error: syntax error, unexpected ',', expecting '{' in php shell code on line 1