<?php
$class_aliases = [
'FooAlias' => 'Foo'
];
spl_autoload_register(function($class) use ($class_aliases) {
if (isset($class_aliases[$class])) {
class_alias($class_aliases[$class], $class);
return true;
}
});
class Foo {}
class Bar extends Foo {}
class FooCreator
{
public function create(FooAlias $foo) {
echo "silly";
}
}
$foo = new Bar;
$creator = new FooCreator();
$creator->create($foo);
Fatal error: Uncaught TypeError: FooCreator::create(): Argument #1 ($foo) must be of type FooAlias, Bar given, called in /in/DXIoZ on line 29 and defined in /in/DXIoZ:20
Stack trace:
#0 /in/DXIoZ(29): FooCreator->create(Object(Bar))
#1 {main}
thrown in /in/DXIoZ on line 20
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Fatal error: Uncaught TypeError: FooCreator::create(): Argument #1 ($foo) must be of type FooAlias, Bar given, called in /in/DXIoZ on line 29 and defined in /in/DXIoZ:20
Stack trace:
#0 /in/DXIoZ(29): FooCreator->create(Object(Bar))
#1 {main}
thrown in /in/DXIoZ on line 20
Process exited with code 255.
Fatal error: Uncaught TypeError: Argument 1 passed to FooCreator::create() must be an instance of FooAlias, instance of Bar given, called in /in/DXIoZ on line 29 and defined in /in/DXIoZ:20
Stack trace:
#0 /in/DXIoZ(29): FooCreator->create(Object(Bar))
#1 {main}
thrown in /in/DXIoZ on line 20
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Catchable fatal error: Argument 1 passed to FooCreator::create() must be an instance of FooAlias, instance of Bar given, called in /in/DXIoZ on line 29 and defined in /in/DXIoZ on line 20
Process exited with code 255.