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|
--TEST--
Pass uninitialized 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";
$ref2 = "Ref2 changed";
}
static function static_v($val) {
$val = "Val changed";
}
static function static_r(&$ref) {
$ref = "Ref changed";
}
static function static_vv($val1, $val2) {
$val1 = "Val1 changed";
$val2 = "Val2 changed";
}
static function static_vr($val, &$ref) {
$val = "Val changed";
$ref = "Ref changed";
}
static function static_rv(&$ref, $val) {
$val = "Val changed";
$ref = "Ref changed";
}
static function static_rr(&$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, $u2);
C::static_v($u1);
C::static_r($u2);
var_dump($u1, $u2);
unset($u1, $u2);
C::static_vv($u1, $u2);
var_dump($u1, $u2);
unset($u1, $u2);
C::static_vr($u1, $u2);
var_dump($u1, $u2);
unset($u1, $u2);
C::static_rv($u1, $u2);
var_dump($u1, $u2);
unset($u1, $u2);
C::static_rr($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 ----
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
NULL
string(11) "Ref changed"
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u2 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u2 in %s on line %d
NULL
NULL
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
NULL
string(11) "Ref changed"
Warning: Undefined variable $u2 in %s on line %d
Warning: Undefined variable $u2 in %s on line %d
string(11) "Ref changed"
NULL
string(12) "Ref1 changed"
string(12) "Ref2 changed"
---- Pass by ref / pass by val: static method calls ----
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
NULL
string(11) "Ref changed"
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u2 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u2 in %s on line %d
NULL
NULL
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
NULL
string(11) "Ref changed"
Warning: Undefined variable $u2 in %s on line %d
Warning: Undefined variable $u2 in %s on line %d
string(11) "Ref changed"
NULL
string(12) "Ref1 changed"
string(12) "Ref2 changed"
---- Pass by ref / pass by val: instance method calls ----
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
NULL
string(11) "Ref changed"
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
NULL
string(11) "Ref changed"
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u2 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u2 in %s on line %d
NULL
NULL
Warning: Undefined variable $u1 in %s on line %d
Warning: Undefined variable $u1 in %s on line %d
NULL
string(11) "Ref changed"
Warning: Undefined variable $u2 in %s on line %d
Warning: Undefined variable $u2 in %s on line %d
string(11) "Ref changed"
NULL
string(12) "Ref1 changed"
string(12) "Ref2 changed"
|
