Rule proposal single_quote

[nickvergessen]

Ref https://cs.symfony.com/doc/rules/string_notation/single_quote.html

I'd like to introduce it with the default value:

--- Original
+++ New
 <?php

-$a = "sample";
+$a = 'sample';
 $b = "sample with 'single-quotes'";

[ChristophWurst]

What happens to string with variables like "hello $name"?

[nickvergessen]

It's good:

Same for \n:

[ChristophWurst]

Then 👍 fine by me