--TEST--
serialization: arrays with references, nested
--FILE--
<?php
/* Prototype  : proto string serialize(mixed variable)
 * Description: Returns a string representation of variable (which can later be unserialized) 
 * Source code: ext/standard/var.c
 * Alias to functions: 
 */
/* Prototype  : proto mixed unserialize(string variable_representation)
 * Description: Takes a string representation of variable and recreates it 
 * Source code: ext/standard/var.c
 * Alias to functions: 
 */

function check(&$a) {
	var_dump($a);
	$ser = serialize($a);
	var_dump($ser);
	
	$b = unserialize($ser);
	
	// Change each element and dump result. 
	foreach($b as $k=>$v) {
		if (is_array($v)){
			foreach($b[$k] as $sk=>$sv) {
				$b[$k][$sk] = "b$k.$sk.changed";
				var_dump($b);
			}
		} else {
			$b[$k] = "b$k.changed";
			var_dump($b);
		}
	}
}

echo "\n\n--- Nested array references 1 element in containing array:\n";
$a = array();
$c = array(1,1,&$a);
$a[0] = &$c[0];
$a[1] = 1;
check($c);

echo "\n\n--- Nested array references 1 element in containing array (slightly different):\n";
$a = array();
$c = array(1,&$a,1);
$a[0] = 1;
$a[1] = &$c[0];
check($c);

echo "\n\n--- Nested array references 2 elements in containing array:\n";
$a = array();
$c = array(1,1,&$a);
$a[0] = &$c[0];
$a[1] = &$c[1];
check($c);

echo "\n\n--- Containing array references 1 element in nested array:\n";
$a = array();
$a[0] = 1;
$a[1] = 1;
$c = array(1,&$a[0],&$a);
check($c);

echo "\n\n--- Containing array references 2 elements in nested array:\n";
$a = array();
$a[0] = 1;
$a[1] = 1;
$c = array(&$a[0],&$a[1],&$a);
check($c);

echo "\n\n--- Nested array references container:\n";
$a = array();
$c = array(1,1,&$a);
$a[0] = 1;
$a[1] = &$c;
check($c);
$a[1] = null;

?>
--EXPECTF--
--- Nested array references 1 element in containing array:
array(3) {
  [0]=>
  &int(1)
  [1]=>
  int(1)
  [2]=>
  &array(2) {
    [0]=>
    &int(1)
    [1]=>
    int(1)
  }
}
string(48) "a:3:{i:0;i:1;i:1;i:1;i:2;a:2:{i:0;R:2;i:1;i:1;}}"
array(3) {
  [0]=>
  &string(10) "b0.changed"
  [1]=>
  int(1)
  [2]=>
  array(2) {
    [0]=>
    &string(10) "b0.changed"
    [1]=>
    int(1)
  }
}
array(3) {
  [0]=>
  &string(10) "b0.changed"
  [1]=>
  string(10) "b1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(10) "b0.changed"
    [1]=>
    int(1)
  }
}
array(3) {
  [0]=>
  &string(12) "b2.0.changed"
  [1]=>
  string(10) "b1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(12) "b2.0.changed"
    [1]=>
    int(1)
  }
}
array(3) {
  [0]=>
  &string(12) "b2.0.changed"
  [1]=>
  string(10) "b1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(12) "b2.0.changed"
    [1]=>
    string(12) "b2.1.changed"
  }
}


--- Nested array references 1 element in containing array (slightly different):
array(3) {
  [0]=>
  &int(1)
  [1]=>
  &array(2) {
    [0]=>
    int(1)
    [1]=>
    &int(1)
  }
  [2]=>
  int(1)
}
string(48) "a:3:{i:0;i:1;i:1;a:2:{i:0;i:1;i:1;R:2;}i:2;i:1;}"
array(3) {
  [0]=>
  &string(10) "b0.changed"
  [1]=>
  array(2) {
    [0]=>
    int(1)
    [1]=>
    &string(10) "b0.changed"
  }
  [2]=>
  int(1)
}
array(3) {
  [0]=>
  &string(10) "b0.changed"
  [1]=>
  array(2) {
    [0]=>
    string(12) "b1.0.changed"
    [1]=>
    &string(10) "b0.changed"
  }
  [2]=>
  int(1)
}
array(3) {
  [0]=>
  &string(12) "b1.1.changed"
  [1]=>
  array(2) {
    [0]=>
    string(12) "b1.0.changed"
    [1]=>
    &string(12) "b1.1.changed"
  }
  [2]=>
  int(1)
}
array(3) {
  [0]=>
  &string(12) "b1.1.changed"
  [1]=>
  array(2) {
    [0]=>
    string(12) "b1.0.changed"
    [1]=>
    &string(12) "b1.1.changed"
  }
  [2]=>
  string(10) "b2.changed"
}


--- Nested array references 2 elements in containing array:
array(3) {
  [0]=>
  &int(1)
  [1]=>
  &int(1)
  [2]=>
  &array(2) {
    [0]=>
    &int(1)
    [1]=>
    &int(1)
  }
}
string(48) "a:3:{i:0;i:1;i:1;i:1;i:2;a:2:{i:0;R:2;i:1;R:3;}}"
array(3) {
  [0]=>
  &string(10) "b0.changed"
  [1]=>
  &int(1)
  [2]=>
  array(2) {
    [0]=>
    &string(10) "b0.changed"
    [1]=>
    &int(1)
  }
}
array(3) {
  [0]=>
  &string(10) "b0.changed"
  [1]=>
  &string(10) "b1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(10) "b0.changed"
    [1]=>
    &string(10) "b1.changed"
  }
}
array(3) {
  [0]=>
  &string(12) "b2.0.changed"
  [1]=>
  &string(10) "b1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(12) "b2.0.changed"
    [1]=>
    &string(10) "b1.changed"
  }
}
array(3) {
  [0]=>
  &string(12) "b2.0.changed"
  [1]=>
  &string(12) "b2.1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(12) "b2.0.changed"
    [1]=>
    &string(12) "b2.1.changed"
  }
}


--- Containing array references 1 element in nested array:
array(3) {
  [0]=>
  int(1)
  [1]=>
  &int(1)
  [2]=>
  &array(2) {
    [0]=>
    &int(1)
    [1]=>
    int(1)
  }
}
string(48) "a:3:{i:0;i:1;i:1;i:1;i:2;a:2:{i:0;R:3;i:1;i:1;}}"
array(3) {
  [0]=>
  string(10) "b0.changed"
  [1]=>
  &int(1)
  [2]=>
  array(2) {
    [0]=>
    &int(1)
    [1]=>
    int(1)
  }
}
array(3) {
  [0]=>
  string(10) "b0.changed"
  [1]=>
  &string(10) "b1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(10) "b1.changed"
    [1]=>
    int(1)
  }
}
array(3) {
  [0]=>
  string(10) "b0.changed"
  [1]=>
  &string(12) "b2.0.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(12) "b2.0.changed"
    [1]=>
    int(1)
  }
}
array(3) {
  [0]=>
  string(10) "b0.changed"
  [1]=>
  &string(12) "b2.0.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(12) "b2.0.changed"
    [1]=>
    string(12) "b2.1.changed"
  }
}


--- Containing array references 2 elements in nested array:
array(3) {
  [0]=>
  &int(1)
  [1]=>
  &int(1)
  [2]=>
  &array(2) {
    [0]=>
    &int(1)
    [1]=>
    &int(1)
  }
}
string(48) "a:3:{i:0;i:1;i:1;i:1;i:2;a:2:{i:0;R:2;i:1;R:3;}}"
array(3) {
  [0]=>
  &string(10) "b0.changed"
  [1]=>
  &int(1)
  [2]=>
  array(2) {
    [0]=>
    &string(10) "b0.changed"
    [1]=>
    &int(1)
  }
}
array(3) {
  [0]=>
  &string(10) "b0.changed"
  [1]=>
  &string(10) "b1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(10) "b0.changed"
    [1]=>
    &string(10) "b1.changed"
  }
}
array(3) {
  [0]=>
  &string(12) "b2.0.changed"
  [1]=>
  &string(10) "b1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(12) "b2.0.changed"
    [1]=>
    &string(10) "b1.changed"
  }
}
array(3) {
  [0]=>
  &string(12) "b2.0.changed"
  [1]=>
  &string(12) "b2.1.changed"
  [2]=>
  array(2) {
    [0]=>
    &string(12) "b2.0.changed"
    [1]=>
    &string(12) "b2.1.changed"
  }
}


--- Nested array references container:
array(3) {
  [0]=>
  int(1)
  [1]=>
  int(1)
  [2]=>
  &array(2) {
    [0]=>
    int(1)
    [1]=>
    &array(3) {
      [0]=>
      int(1)
      [1]=>
      int(1)
      [2]=>
      *RECURSION*
    }
  }
}
string(74) "a:3:{i:0;i:1;i:1;i:1;i:2;a:2:{i:0;i:1;i:1;a:3:{i:0;i:1;i:1;i:1;i:2;R:4;}}}"
array(3) {
  [0]=>
  string(10) "b0.changed"
  [1]=>
  int(1)
  [2]=>
  &array(2) {
    [0]=>
    int(1)
    [1]=>
    array(3) {
      [0]=>
      int(1)
      [1]=>
      int(1)
      [2]=>
      *RECURSION*
    }
  }
}
array(3) {
  [0]=>
  string(10) "b0.changed"
  [1]=>
  string(10) "b1.changed"
  [2]=>
  &array(2) {
    [0]=>
    int(1)
    [1]=>
    array(3) {
      [0]=>
      int(1)
      [1]=>
      int(1)
      [2]=>
      *RECURSION*
    }
  }
}
array(3) {
  [0]=>
  string(10) "b0.changed"
  [1]=>
  string(10) "b1.changed"
  [2]=>
  &array(2) {
    [0]=>
    string(12) "b2.0.changed"
    [1]=>
    array(3) {
      [0]=>
      int(1)
      [1]=>
      int(1)
      [2]=>
      *RECURSION*
    }
  }
}
array(3) {
  [0]=>
  string(10) "b0.changed"
  [1]=>
  string(10) "b1.changed"
  [2]=>
  &array(2) {
    [0]=>
    string(12) "b2.0.changed"
    [1]=>
    string(12) "b2.1.changed"
  }
}
