multi level methods?

[The Little Guy]

In javascript you can do multiple methods on the same line like:

if(document.getElementById('myElement').className.match(/^[0-9]/)){/*Do something*/}

 

in that we have getElementById() and match() on the same line, and it works the same as if you were to split them on multiple lines.

 

Is it possible to do that with php?

 

For example:

$obj = new MyObject();

$obj->add(2, 3)->to_string();

[AbraCadaver]

Yes, method chaining.  So long as the methods return an object with the next method, normally return $this.

[The Little Guy]

do you need to do anything special to do it?

[KevinM1]

do you need to do anything special to do it?

 

Like AC said, each method has to return an object for the next method to act upon.  Typically, it's the current object ($this) since the methods are acting on it in succession.

[The Little Guy]

ok, I looked at an example and it makes sense now. Let me try it!

[AbraCadaver]

Sorry, you must have read it before my edit.  The method must return an object containing the next method.  Normally $this.