哪个版本的PHP引入了接​​口？ [关闭]

Question

I'm tempted to use interfaces in my project but am unsure if they work with PHP version 5.2 (which I must support).

What is the minimum version of PHP that will allow me to use interfaces in my code?

Ref: http://php.net/manual/en/language.oop5.interfaces.php

Answer 1

Interfaces were introduced in php 5! You can see this in the manual here: http://php.net/manual/en/oop5.intro.php

And a quote from there:

Among the features in PHP 5 are the inclusions of visibility, abstract and final classes and methods, additional magic methods, interfaces, cloning and typehinting.

You can also simply test it here: http://3v4l.org/T2uJU and then you see it also there