Intersect unknown number of arrays in PHP

Question

I\'m trying to intersect an arbitrary number of PHP arrays, the count of which depends on a user provided parameter, each of which can have any number of elements.

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Answer 1

Create a new empty array, add each of your arrays to that, then use call_user_func_array()

$wrkArray = array( $userArray1,
                   $userArray2,
                   $userArray3
                 );
$result = call_user_func_array('array_intersect',$wrkArray);