获取函数外部声明的数组到每个函数，而不在php中传递参数

Question

Get array declared outside function to every function without passing argument in php

<?php
  $arr2= array('00','12','23','73'); 

  function f1() {
    print_r($arr2);
  }

  f1();
?>

Here we can pass the array f1($arr2), but I want to know whether we acess array inside the function 'f1' without passing, something like setting global or some else ?

I want only to know, whether it is possible or not ?

Answer 1

use global:

  function f1() {
    global $arr2;
    print_r($arr2);
  }

However, as @steven already point out, it is considered bad practice.

These thread talk about why global variable is considered bad:

• Are global variables in PHP considered bad practice? If so, why?
• PHP global in functions