<?
class ListᐸTᐳ
{
private $items = [];
public function add(T $item)
{
$this->items[] = $item;
}
}
class Listᐸstringᐳ extends ListᐸTᐳ {}
$list = new Listᐸstringᐳ();
$list->add('Foo');
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
<?
class ListᐸTᐳ
{
private $items = [];
public function add(T $item)
{
$this->items[] = $item;
}
}
class Listᐸstringᐳ extends ListᐸTᐳ {}
$list = new Listᐸstringᐳ();
$list->add('Foo');
Output for 8.0.13
Fatal error: Uncaught TypeError: ListᐸTᐳ::add(): Argument #1 ($item) must be of type T, string given, called in /in/Gg4IZ on line 16 and defined in /in/Gg4IZ:7
Stack trace:
#0 /in/Gg4IZ(16): ListᐸTᐳ->add('Foo')
#1 {main}
thrown in /in/Gg4IZ on line 7
Process exited with code 255.
Fatal error: Uncaught TypeError: Argument 1 passed to ListᐸTᐳ::add() must be an instance of T, string given, called in /in/Gg4IZ on line 16 and defined in /in/Gg4IZ:7
Stack trace:
#0 /in/Gg4IZ(16): ListᐸTᐳ->add('Foo')
#1 {main}
thrown in /in/Gg4IZ on line 7
Process exited with code 255.