Create associative multi-dimensional array

I have 3 variables, each one holding a different information and send values from a text file dynamicaly. I want to put them in a Associative multi-dimensional array.

let's say :

$product sends car, truck, train, etc.
$price sends 1000, 3000,  1500, etc.
$year  sends 1997, 1980, 2008, etc.

How to create a function which generates an array as follow, when i execute print_r(myarray):

Array (
[0开发者_运维百科] => Array ( [product] => car [price] => 1000 [year] => 1997 ) 
[1] => Array ( [product] => truck [price] => 3000 [year] => 1980 )
[2] => Array ( [product] => train [price] => 1500 [year] => 2008 )) and so on. 

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Take a look at this question: Define 2D array with loops in php