PHP - Convert all POST data into SESSION variables -

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There should be a much more elegant way of doing this.

Recovery post data to session variables, without specifying all non-lineal line lines from each of them? Basically, I want to work below for all instances of X which is present in POST array. 

  if (! $ _ POST ['X'])) $ _SESSION ['X'] = $ _ Post ['X'];

I was going to do it one by one, but then I thought that there should be a much more elegant solution

or for that effect I will not use something like empty because it treats 0 empty.


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