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Date: Wed, 25 Feb 2015 18:23:49 +0400
Cc: "Dmitry Stogov" <dmitry@zend.com>
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Subject: Re: [PHP-DEV] Coercive Scalar Type Hints RFC
From: inefedor@gmail.com ("Niktia Nefedov")

On Wed, 25 Feb 2015 17:54:21 +0400, Dmitry Stogov <dmitry@zend.com> wrote:
>The object on the call-site should remain to be an object (if it's not  
> passed by reference), however the called function will receive a string.
> It works in PHP-5 and PHP-7. Nothing should be changed.
>$ sapi/cli/php -r 'class X {function __toString(){return "abc";}} $x=new  
> X; var_dump(strlen($x)); var_dump($x);'
> int(3)
> object(X)#1 (0) {
> }
>However, declare(strict_types=1) will break this. see  
> https://github.com/ircmaxell/php-src/compare/scalar_type_hints_v5#diff-ef5bf53d1412b50f85d125ca4fe84741R1182
>Thanks. Dmitry.

Dmitry, I was talking about passing an object to a function, expecting a  
reference of a string:

'class X { function __toString() { return spl_object_hash($this); } } $x =  
new X; function foo(string &$x){} foo($x); var_dump($x);'

Now what would this produce in Coercive STH is still an open question I  
guess as there is no implementation yet.