Define functions just like variables

[jrmyio]

It would be cool if this library would support functions too just like you can define your own {variables}.

The syntax could be something like {test("string")}.

Also very handy would be support for > < <= >= != and =.

Example would be

"{testfunction('test')} > 2"

[stephpy]

I see, you would like something like that ?

<?php 
$formula = new Formula('1 + {{ var }} + {{ myFunction(1, 2, 3) }}');
$formula->setParameter('var', 10);
$formula->setParameter('myFunction', function($arg1, $arg2, $arg3) { 
  //return something here
};);

If i'm right, i guess we could stay on variable syntax.

It's a good improvement :)

[jrmyio]

Yup, even on the variable side it would be handy to accept a function callback so you can lazy load if the result of the parameter is calculated by some other class.

[stephpy]

Yes, it would be a good improvement, i'm busy actually, if you can make a PR, that's cool. Or i'll make it asap.

[shouze]

This is a very old one... we should close it and tag it wontfix no?

[stephpy]

This is an interesting enhancement, no time to add this at this moment.