[PSR-12] blank line after <?php

[mcf...@gmail.com]

Hi everyone

I just found that whether there should be one blank line  after opening `<?php` is not clarified now. also examples in current standard are not consistent. there is some statement about `<?php`, but I think the number of blank line after that should also be standardized

current statement:

When the opening <?php tag is on the first line of the file, it MUST be on its own line with no other statements unless it is a file containing markup outside of PHP opening and closing tags.

[Woody Gilk]

The current de facto standard is that `declare` statements immediately follow the `<?php` tag:

<?php

declare(strict_types=1);

namespace Acme;

Or when there is no `declare` statement:

<?php

namespace Acme;

This should probably be codified into PSR-12.

--
Woody Gilk
http://about.me/shadowhand

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[Adrien Crivelli]

I agree that it has to be standardized and not left open to interpretation. And since all other header blocks are treated the same way, it make sense to also treat `<?php` the same way and don't make an exception for `declare` statement.

I submitted a pull request for that: https://github.com/php-fig/fig-standards/pull/984