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- --TEST--
- Pass uninitialised variables by reference and by value to test implicit initialisation.
- --FILE--
- <?php
- function v($val) {
- $val = "Val changed";
- }
- function r(&$ref) {
- $ref = "Ref changed";
- }
- function vv($val1, $val2) {
- $val1 = "Val1 changed";
- $val2 = "Val2 changed";
- }
- function vr($val, &$ref) {
- $val = "Val changed";
- $ref = "Ref changed";
- }
- function rv(&$ref, $val) {
- $val = "Val changed";
- $ref = "Ref changed";
- }
- function rr(&$ref1, &$ref2) {
- $ref1 = "Ref1 changed";
- $ref2 = "Ref2 changed";
- }
- class C {
- function __construct($val, &$ref) {
- $val = "Val changed";
- $ref = "Ref changed";
- }
- function v($val) {
- $val = "Val changed";
- }
- function r(&$ref) {
- $ref = "Ref changed";
- }
- function vv($val1, $val2) {
- $val1 = "Val1 changed";
- $val2 = "Val2 changed";
- }
- function vr($val, &$ref) {
- $val = "Val changed";
- $ref = "Ref changed";
- }
- function rv(&$ref, $val) {
- $val = "Val changed";
- $ref = "Ref changed";
- }
- function rr(&$ref1, &$ref2) {
- $ref1 = "Ref1 changed";
- $ref2 = "Ref2 changed";
- }
- }
- echo "\n ---- Pass by ref / pass by val: functions ----\n";
- unset($u1, $u2);
- v($u1);
- r($u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- vv($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- vr($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- rv($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- rr($u1, $u2);
- var_dump($u1, $u2);
- echo "\n\n ---- Pass by ref / pass by val: static method calls ----\n";
- unset($u1, $u2);
- C::v($u1);
- C::r($u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- C::vv($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- C::vr($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- C::rv($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- C::rr($u1, $u2);
- var_dump($u1, $u2);
- echo "\n\n ---- Pass by ref / pass by val: instance method calls ----\n";
- unset($u1, $u2);
- $c = new C($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- $c->v($u1);
- $c->r($u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- $c->vv($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- $c->vr($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- $c->rv($u1, $u2);
- var_dump($u1, $u2);
- unset($u1, $u2);
- $c->rr($u1, $u2);
- var_dump($u1, $u2);
- ?>
- --EXPECTF--
- ---- Pass by ref / pass by val: functions ----
- Notice: Undefined variable: u1 in %s on line 72
- Notice: Undefined variable: u1 in %s on line 74
- NULL
- string(11) "Ref changed"
- Notice: Undefined variable: u1 in %s on line 77
- Notice: Undefined variable: u2 in %s on line 77
- Notice: Undefined variable: u1 in %s on line 78
- Notice: Undefined variable: u2 in %s on line 78
- NULL
- NULL
- Notice: Undefined variable: u1 in %s on line 81
- Notice: Undefined variable: u1 in %s on line 82
- NULL
- string(11) "Ref changed"
- Notice: Undefined variable: u2 in %s on line 85
- Notice: Undefined variable: u2 in %s on line 86
- string(11) "Ref changed"
- NULL
- string(12) "Ref1 changed"
- string(12) "Ref2 changed"
- ---- Pass by ref / pass by val: static method calls ----
- Deprecated: Non-static method C::v() should not be called statically in %s on line 95
- Notice: Undefined variable: u1 in %s on line 95
- Deprecated: Non-static method C::r() should not be called statically in %s on line 96
- Notice: Undefined variable: u1 in %s on line 97
- NULL
- string(11) "Ref changed"
- Deprecated: Non-static method C::vv() should not be called statically in %s on line 100
- Notice: Undefined variable: u1 in %s on line 100
- Notice: Undefined variable: u2 in %s on line 100
- Notice: Undefined variable: u1 in %s on line 101
- Notice: Undefined variable: u2 in %s on line 101
- NULL
- NULL
- Deprecated: Non-static method C::vr() should not be called statically in %s on line 104
- Notice: Undefined variable: u1 in %s on line 104
- Notice: Undefined variable: u1 in %s on line 105
- NULL
- string(11) "Ref changed"
- Deprecated: Non-static method C::rv() should not be called statically in %s on line 108
- Notice: Undefined variable: u2 in %s on line 108
- Notice: Undefined variable: u2 in %s on line 109
- string(11) "Ref changed"
- NULL
- Deprecated: Non-static method C::rr() should not be called statically in %s on line 112
- string(12) "Ref1 changed"
- string(12) "Ref2 changed"
- ---- Pass by ref / pass by val: instance method calls ----
- Notice: Undefined variable: u1 in %s on line 117
- Notice: Undefined variable: u1 in %s on line 118
- NULL
- string(11) "Ref changed"
- Notice: Undefined variable: u1 in %s on line 121
- Notice: Undefined variable: u1 in %s on line 123
- NULL
- string(11) "Ref changed"
- Notice: Undefined variable: u1 in %s on line 126
- Notice: Undefined variable: u2 in %s on line 126
- Notice: Undefined variable: u1 in %s on line 127
- Notice: Undefined variable: u2 in %s on line 127
- NULL
- NULL
- Notice: Undefined variable: u1 in %s on line 130
- Notice: Undefined variable: u1 in %s on line 131
- NULL
- string(11) "Ref changed"
- Notice: Undefined variable: u2 in %s on line 134
- Notice: Undefined variable: u2 in %s on line 135
- string(11) "Ref changed"
- NULL
- string(12) "Ref1 changed"
- string(12) "Ref2 changed"
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