Re: [PHP-DEV] Re: [VOTE] Userspace operator overloading

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March 26, 2020 17:25 ("Christoph M. Becker")
On 26.03.2020 at 18:18, Guilliam Xavier wrote:

> On Thu, Mar 26, 2020 at 5:37 PM> wrote: >> >> The overloaded concat operator has higher priority than the __toString() method. >> So if Class A overloades the concat operator, then calling $a . $b means ClassA::__concat($a, $b); (Note that both operands are passed in their original form) >> If you want to concat the string representations, you will have to explicitly convert the objects to strings: >> $ret = (string) $a . (string) $b; > > This first part seems legit to me. > >> If the concat operator is not overloaded, the behavior is like now, and the objects are converted implicitly to strings (so $a . $b actually means (string) $a . (string) $b). >> Furthermore an notice is triggered, hinting the user that he could overload the concat operator. (Maybe here a different message than for the other operators would be useful). > > I fear that "hint" notice could break Symfony apps... Couldn't you > just not trigger it in this case?
Either that (it's what I would prefer), or clearly document that BC break (even if it's just about a notice). Thanks, Christoph