1--TEST--
2In $a->$b[Y](), $b[Y] represents a method name on $a. But in $a->X[Y](), $a->X[Y] represents a global function name.
3--FILE--
4<?php
5  class C
6  {
7      function foo($a, $b)
8      {
9          echo "Called C::foo($a, $b)\n";
10      }
11  }
12
13  $c = new C;
14
15  $functions[0] = 'foo';
16  $functions[1][2][3][4] = 'foo';
17
18  $c->$functions[0](1, 2);
19  $c->$functions[1][2][3][4](3, 4);
20
21
22  function foo($a, $b)
23  {
24      echo "Called global foo($a, $b)\n";
25  }
26
27  $c->functions[0] = 'foo';
28  $c->functions[1][2][3][4] = 'foo';
29
30  $c->functions[0](5, 6);
31  $c->functions[1][2][3][4](7, 8);
32?>
33--EXPECTF--
34Called C::foo(1, 2)
35Called C::foo(3, 4)
36Called global foo(5, 6)
37Called global foo(7, 8)
38