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<?php class Cart { public function save(object $repo = null) { if ($repo === null || !$repo instanceof CartRepository) { throw new Exception('Save the cart using the CartRepository' . "\n"); } $repo->save($this); } } class CartRepository { public function save(Cart $cart) { return 'saved!'; } } $repo = new CartRepository(); $cart = new Cart(); try { $cart->save(); } catch (Exception $e) { echo $e->getMessage(); } echo $repo->save($cart);
Output for 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
Deprecated: Cart::save(): Implicitly marking parameter $repo as nullable is deprecated, the explicit nullable type must be used instead in /in/uHW1e on line 5 Save the cart using the CartRepository saved!
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28
Save the cart using the CartRepository saved!
preferences:
93.43 ms | 409 KiB | 5 Q