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Trampoline autoloader will get reregistered and cannot be unregistered #10011
Description
Description
Found while working on #8294, currently it is possible to register a trampoline as an autoloader but there is no way to remove it nor is it prevented from being registered multiple times.
The following code: https://3v4l.org/0mYUn
<?php
class TrampolineTest {
public function __call(string $name, array $arguments) {
echo 'Trampoline for ', $name, PHP_EOL;
}
}
$o = new TrampolineTest();
$callback1 = [$o, 'trampoline1'];
$callback2 = [$o, 'trampoline2'];
spl_autoload_register($callback1);
spl_autoload_register($callback2);
spl_autoload_register($callback1); // 2nd call ignored
var_dump(spl_autoload_functions());
var_dump(class_exists("TestClass", true));
echo "Unregister trampoline:\n";
var_dump(spl_autoload_unregister($callback1));
var_dump(spl_autoload_unregister($callback1));
var_dump(spl_autoload_unregister($callback2));
var_dump(spl_autoload_functions());
var_dump(class_exists("TestClass", true));Resulted in this output:
array(3) {
[0]=>
array(2) {
[0]=>
object(TrampolineTest)#1 (0) {
}
[1]=>
string(11) "trampoline1"
}
[1]=>
array(2) {
[0]=>
object(TrampolineTest)#1 (0) {
}
[1]=>
string(11) "trampoline2"
}
[2]=>
array(2) {
[0]=>
object(TrampolineTest)#1 (0) {
}
[1]=>
string(11) "trampoline1"
}
}
Trampoline for trampoline1
Trampoline for trampoline2
Trampoline for trampoline1
bool(false)
Unregister trampoline:
bool(false)
bool(false)
bool(false)
array(3) {
[0]=>
array(2) {
[0]=>
object(TrampolineTest)#1 (0) {
}
[1]=>
string(11) "trampoline1"
}
[1]=>
array(2) {
[0]=>
object(TrampolineTest)#1 (0) {
}
[1]=>
string(11) "trampoline2"
}
[2]=>
array(2) {
[0]=>
object(TrampolineTest)#1 (0) {
}
[1]=>
string(11) "trampoline1"
}
}
Trampoline for trampoline1
Trampoline for trampoline2
Trampoline for trampoline1
bool(false)
But I expected this output instead:
array(2) {
[0]=>
array(2) {
[0]=>
object(TrampolineTest)#1 (0) {
}
[1]=>
string(11) "trampoline1"
}
[1]=>
array(2) {
[0]=>
object(TrampolineTest)#1 (0) {
}
[1]=>
string(11) "trampoline2"
}
}
Trampoline for trampoline1
Trampoline for trampoline2
bool(false)
Unregister trampoline:
bool(true)
bool(false)
bool(true)
bool(false)
PHP Version
All
Operating System
No response
Activity
Fix phpGH-10011 (Trampoline autoloader will get reregistered and cann…
Merge branch 'PHP-8.1' into PHP-8.2
Merge branch 'PHP-8.2'
Fix phpGH-10011 (Trampoline autoloader will get reregistered and cann…