But I digress.
So, since PHP is a single inheritance language. There are occasions, when you need things across multiple classes, but you can't because your already extending a class, and inheriting their properties.
class somename extends something,else {
}
is invalid. since you can't extend multiple classes.SO what do you do?
Well, with php 5.4, a new languages construct called Traits is here
It saves you from having to copy and paste that other class over, and so on.
trait else {
function someName(){
return 'hello';
}
}
class helloWorld {
use else;
echo someName();
}
$hello = new helloWorld;
helloWorld::someName();
That should print out 'hello'Thats my basic understanding of it anyway.
you can extend another class still, and if you were to have a naming conflict between two traits, then you would use the new insteadof operator
As such
trait one {
function traitName(){
return 'one';
}
}
trait two {
function traitName(){
return 'two';
}
}
class name {
use one,two;
one:: traitName instead of two;
}
That would use the traitName from one, and not two by default. But two is still accessible by using two::traitName() inside of the class.Alternatively, if you need access to either at any time, without referencing their class, then you can do that by using the as and renaming one of them temporarily.
/* same as above */
class name {
use one,two;
one:: traitName as traitNameOne;
}
That would allow for traitNameOne and traitName to be used, where they reference trait one and two respectively.
