[CLEANUP] Reformat the code with the PER-2 configuration

[oliverklee]

Also switch a test string from heredoc to a string literal
to avoid the string from getting indented.

[coveralls]

coverage: 59.658%. remained the same
when pulling ebc7061 on cleanup/reformat
into c7eb1c1 on main.

[oliverklee]

I don't understand why these changes cause PHP linting to fail in PHP 7.2 to fail. 🤯

@JakeQZ Any ideas?

[JakeQZ]

I don't understand why these changes cause PHP linting to fail in PHP 7.2 to fail. 🤯

@JakeQZ Any ideas?

After a bit of head-scratching, a distant memory dawned on me...

[JakeQZ]

Indenting this will probably break the test, because it will include the additional whitespace in the expected result. For readability, it might be better constructing the string by concatenating substrings.

The Lint failure in PHP 7.2 is because the heredoc closing identifier must be at the beginning of the line. From the docs:

The closing identifier may be indented by space or tab, in which case the indentation will be stripped from all lines in the doc string. Prior to PHP 7.3.0, the closing identifier must begin in the first column of the line.

So actually, indenting this will not break the tests for PHP >= 7.3, but will for PHP 7.2.