ZE2 race condition View as Markdown

That's quite intentional - assignments in ZE2 are handle based, versus the
value based in ZE1. That's more or less the biggest change in ZE2 :)

If you want to create copies like in ZE1 you can use __clone().

Zeev

At 06:13 25/03/2003, Jan Schneider wrote:

Running the following code:

class Foo {
var $bar_ref;
}

class Bar {
var $foo_ref;
}

$foo = new Foo();
$bar = new Bar();
$foo->bar_ref = $bar;
$bar->foo_ref = $foo;

var_dump($foo);
var_dump($bar);

$s = serialize($foo);
var_dump($s);
$s = serialize($bar);
var_dump($s);

in PHP_4_3 results to:

object(foo)(1) {
["bar_ref"]=>
object(bar)(1) {
["foo_ref"]=>
NULL
}
}
object(bar)(1) {
["foo_ref"]=>
object(foo)(1) {
["bar_ref"]=>
object(bar)(1) {
["foo_ref"]=>
NULL
}
}
}
string(58) "O:3:"foo":1:{s:7:"bar_ref";O:3:"bar":1:{s:7:"foo_ref";N;}}"
string(86)
"O:3:"bar":1:{s:7:"foo_ref";O:3:"foo":1:{s:7:"bar_ref";O:3:"bar":1:{s:7:"foo_ref";N;}}}"

in HEAD:

object(foo)#1 (1) {
["bar_ref"]=>
object(bar)#2 (1) {
["foo_ref"]=>
object(foo)#1 (1) {
["bar_ref"]=>
object(bar)#2 (1) {
["foo_ref"]=>
RECURSION
}
}
}
}
object(bar)#2 (1) {
["foo_ref"]=>
object(foo)#1 (1) {
["bar_ref"]=>
object(bar)#2 (1) {
["foo_ref"]=>
object(foo)#1 (1) {
["bar_ref"]=>
RECURSION
}
}
}
}

and a segfault (apache 1 sapi) or a runaway process (cli sapi).

Jan.

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