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PHP has (almost) complete strong typing system and all the bells and whistles of OOP needed to implement said systems using proper patterns and methodologies an

• kstrauser 6y ago
  Python has literally all of those things, and has been strongly (but dynamically) type from the very beginning. PHP is still weakly typed today. This code doesn't raise a warning or anything: $ php --version PHP 7.3.11 (cli) (built: Jun 5 2020 23:50:40) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.3.11, Copyright (c) 1998-2018 Zend Technologies $ php -r 'echo "123" + 45;' 168 Contrast with Python: Python 3.8.3 (default, Jun 1 2020, 10:55:34) >>> "123" + 45 Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: can only concatenate str (not "int") to str
  • SergeAx 6y ago
    These examples are not about strong typing, but about type juggling. Strong typing is this: declare(strict_types=1); use \Domain\SomeItem; use \Domain\SomeItemId; use \Domain\SomeItemSpec; abstract class SomeItemRepo { public function GetOneByID(SomeItemId $id): SomeItem; /* * Still hacky * * @param []SomeItemSpec $specs * * @return []SomeItem */ public function GetManyBySpecs(array $specs): array; }
    • kstrauser 6y ago
      That's an example of strong typing specific to PHP, then, and not used in the rest of computer science. What you're describing there is usually known as static typing, which Python also supports.
      • francislavoie 6y ago
        No, types are checked at runtime in PHP. You can also use static types with docblocks and use static analysis tools, and both play complement eachother.