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Creating my first hook...


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I've red the documentation abouts hooks but I'm a bit lost. I would like to create a hook to retreive servers configuration in the cart, when summited, and then send thos information by REST to another server.


How can I know what are the fields name of my servers ?


function hook_CreationServeur($vars) {


for($i = 0; $i < $produtsSize;$i++)








I understand that "$_SESSION['cart']['products'][$i]" is my product (Array). I have custum fields for my products, how can I have the value of those fields ?

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