list_reference_007.phpt   [plain text]

--TEST--
"Reference Unpacking - Class ArrayAccess With Reference" list()
--FILE--
<?php

class StorageRef implements ArrayAccess {
    private $s = [];
    function __construct(array $a) { $this->s = $a; }
    function offsetSet ($k, $v) { $this->s[$k] = $v; }
    function &offsetGet ($k) { return $this->s[$k]; }
    function offsetExists ($k) { return isset($this->s[$k]); }
    function offsetUnset ($k) { unset($this->s[$k]); }
}

$a = new StorageRef([1, 2]);
list(&$one, $two) = $a;
var_dump($a);

$a = new StorageRef([1, 2]);
list(,,list($var)) = $a;
var_dump($a);

$a = new StorageRef([1, 2]);
list(,,list(&$var)) = $a;
var_dump($a);

$a = new StorageRef(['one' => 1, 'two' => 2]);
['one' => &$one, 'two' => $two] = $a;
var_dump($a);

?>
--EXPECT--
object(StorageRef)#1 (1) {
  ["s":"StorageRef":private]=>
  array(2) {
    [0]=>
    &int(1)
    [1]=>
    int(2)
  }
}
object(StorageRef)#2 (1) {
  ["s":"StorageRef":private]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(2)
    [2]=>
    NULL
  }
}
object(StorageRef)#1 (1) {
  ["s":"StorageRef":private]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(2)
    [2]=>
    array(1) {
      [0]=>
      &NULL
    }
  }
}
object(StorageRef)#2 (1) {
  ["s":"StorageRef":private]=>
  array(2) {
    ["one"]=>
    &int(1)
    ["two"]=>
    int(2)
  }
}