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Wouldn't it be useful a method to compare a variable to a number (or to a string) and use the result in a switch?
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I often have to switch between a variable that is equal or greater than a value and I must to code a php function and use it or pass its result to a switch.
It would be easier if the Data Provider of switches could manage such comparisons, something like:
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in read_data the format is:

id/=:{data:field}

or

id/<:{data:field}

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in switch it could be:

{var:varname}/=:3

or

{var:varname}/<:7

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and in Values setup:
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true:some code if the condition is true

false:some code if the condition is false
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maxx

That would be nice.
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In the meantime one thing you could do:
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Have ONE PHP action, with

switch($this->get("func", "")) {
   case("function1"):
       if($this->get("value", "") < 4) { return true; }
       break;

so on and so forth.
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Call the PHP action with {fn:my_php$value=(var:where_im_getting_the_value_from)&func=function_name_i_want}

Thank you but a switch would be way better. 🙂
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For readability of the code something like (other possible syntax for this new method) the following is much better:
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{var:varname} as Data provider and as Values Setup:
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<=3:{error:Too low value}
between 4 and 7:{success:Good!}
>7:{success:You won!}{fn:goto_bank}