--TEST-- serialization: arrays with references to the containing array --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); var_dump($b); $b[0] = "b0.changed"; var_dump($b); $b[1] = "b1.changed"; var_dump($b); $b[2] = "b2.changed"; var_dump($b); } echo "\n\n--- 1 refs container:\n"; $a = array(); $a[0] = &$a; $a[1] = 1; $a[2] = 1; check($a); echo "\n\n--- 1,2 ref container:\n"; $a = array(); $a[0] = &$a; $a[1] = &$a; $a[2] = 1; check($a); echo "\n\n--- 1,2,3 ref container:\n"; $a = array(); $a[0] = &$a; $a[1] = &$a; $a[2] = &$a; check($a); echo "Done"; ?> --EXPECTF-- --- 1 refs container: array(3) { [0]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> int(1) [2]=> int(1) } [1]=> int(1) [2]=> int(1) } [1]=> int(1) [2]=> int(1) } string(56) "a:3:{i:0;a:3:{i:0;R:2;i:1;i:1;i:2;i:1;}i:1;i:1;i:2;i:1;}" array(3) { [0]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> int(1) [2]=> int(1) } [1]=> int(1) [2]=> int(1) } [1]=> int(1) [2]=> int(1) } array(3) { [0]=> %string(10) "b0.changed" [1]=> int(1) [2]=> int(1) } array(3) { [0]=> %string(10) "b0.changed" [1]=> string(10) "b1.changed" [2]=> int(1) } array(3) { [0]=> %string(10) "b0.changed" [1]=> string(10) "b1.changed" [2]=> string(10) "b2.changed" } --- 1,2 ref container: array(3) { [0]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> int(1) } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> int(1) } [2]=> int(1) } [1]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> int(1) } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> int(1) } [2]=> int(1) } [2]=> int(1) } string(56) "a:3:{i:0;a:3:{i:0;R:2;i:1;R:2;i:2;i:1;}i:1;R:2;i:2;i:1;}" array(3) { [0]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> int(1) } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> int(1) } [2]=> int(1) } [1]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> int(1) } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> int(1) } [2]=> int(1) } [2]=> int(1) } array(3) { [0]=> &string(10) "b0.changed" [1]=> &string(10) "b0.changed" [2]=> int(1) } array(3) { [0]=> &string(10) "b1.changed" [1]=> &string(10) "b1.changed" [2]=> int(1) } array(3) { [0]=> &string(10) "b1.changed" [1]=> &string(10) "b1.changed" [2]=> string(10) "b2.changed" } --- 1,2,3 ref container: array(3) { [0]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [2]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } } [1]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [2]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } } [2]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [2]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } } } string(56) "a:3:{i:0;a:3:{i:0;R:2;i:1;R:2;i:2;R:2;}i:1;R:2;i:2;R:2;}" array(3) { [0]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [2]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } } [1]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [2]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } } [2]=> &array(3) { [0]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [1]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } [2]=> &array(3) { [0]=> *RECURSION* [1]=> *RECURSION* [2]=> *RECURSION* } } } array(3) { [0]=> &string(10) "b0.changed" [1]=> &string(10) "b0.changed" [2]=> &string(10) "b0.changed" } array(3) { [0]=> &string(10) "b1.changed" [1]=> &string(10) "b1.changed" [2]=> &string(10) "b1.changed" } array(3) { [0]=> &string(10) "b2.changed" [1]=> &string(10) "b2.changed" [2]=> &string(10) "b2.changed" } Done