How to pass multiple parameters in array_walk

Question

I want to use array_walk so I am passing extra two array as parameter but didn't get exact process to deal it? o how to pass extra parameters in the form of array and access inside array_walk

 $main_array;
 $array_1;
 $array_2;

 array_walk($main_array, function(&$a, &$key) use($a, &$array_1, &$array_2) {
                            echo $a." :: ". $key."<br>";
                        });

Error:

Severity: Compile Error

Message: Cannot use lexical variable $a as a parameter name