--- date: 2020-11-10 id: f97470da-6833-4ecf-81e2-40dd04f6c2a1 title: PHP Stringable Interface --- # Description Since [PHP 8.0](20201109133834-php_8_0), the stringable interface[^1] is automatically added to classes that implement the `__toString()` method # Syntax ``` php class Foo { public function __toString(): string { return 'foo'; } } function bar(string|Stringable $stringable) { /* … */ } bar(new Foo()); bar('abc'); ``` # Footnotes [^1]: