0003210: array reference issue

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Category

Severity

Reproducibility

Date Submitted

Last Update

0003210

[Quercus]

minor

always

12-30-08 09:01

01-04-09 16:54

Reporter

ferg

View Status

public

Assigned To

ferg

Priority

urgent

Resolution

fixed

Status

closed

Product Version

4.0.0

Summary

0003210: array reference issue

Description

(rep by koreth)

Code is something like the following, where $stack gets modified by the yystack assignment.

class A {
  public $yystack = array("a", "b");
  public $yyindex = 0;

  function bar()
  {
    $x =& $this->yystack;
  }

  function foo()
  {
    $stack = $this->yystack;

    $x = new C;
    $this->yystack[$this->yyindex++] = $x;

    return $stack;
  }
}

Additional Information

Attached Files

Relationships

Notes
(0003686) ferg 12-30-08 09:25	php/04a8

(0003694) ferg 01-04-09 16:53	php/34a9 for the specific code. The general case is not solvable in Quercus, because PHP's references are implemented by reference count, which Quercus does not do. So there are situations where PHP will create a reference and remove it, and Quercus will create a reference, but not be able to remove the reference. Since array copies behave differently for references vs array values, this difference between Apache PHP and Quercus will need to be resolved on a case-by-case basis.

Issue History
Date Modified	Username	Field	Change
12-30-08 09:01	ferg	New Issue
12-30-08 09:25	ferg	Note Added: 0003686
12-30-08 09:25	ferg	Assigned To	=> ferg
12-30-08 09:25	ferg	Status	new => closed
12-30-08 09:25	ferg	Resolution	open => fixed
12-30-08 09:25	ferg	Fixed in Version	=> 4.0.0
12-30-08 12:50	nam	Assigned To	ferg =>
12-30-08 12:50	nam	Status	closed => new
12-30-08 12:56	koreth	Issue Monitored: koreth
01-04-09 14:44	ferg	Priority	normal => urgent
01-04-09 16:53	ferg	Note Added: 0003694
01-04-09 16:54	ferg	Assigned To	=> ferg
01-04-09 16:54	ferg	Status	new => closed

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