How do I invoke the outside array in function?

The function inside how to call the outside array, array content is mainly configuration information.

In addition to setting global variables there is no other way or generally can be done in different ways??

Reply to discussion (solution)

Passed in as a parameter

$arr =array (1,2,3,4,5), $arr 2 = Test ($arr), function test ($get _arr) {return $get _arr;}

Pass the reference

a.php page fn (), function fn () {include_once ' b.php ';p rint_r ($arr);} b.php page $arr=array (1,2,3,4,5);

It's been tested before, as if it could

parameter, or public calling interface
Your configuration items can be locally private, but must have an open interface to provide read and write

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