doc/component/Pretty_printing.markdown: shortArraySyntax not the legacy option

[WinterSilence]

This is a legacy option, and phpVersion should be used to control this behavior instead.

it's invalid because you can use latest version of PHP, but print code compatible with old versions

[nikic]

I don't understand what you're trying to say. The phpVersion option has nothing to do with the version of PHP you're running on.

[WinterSilence]

@nikic for example, we want use old array syntax to print AST contained flexible heredoc's, but we can't pass ['phpVersion' => PhpVersion::fromComponents(5, 4)] because this can fail rendering flexible heredoc's.

PHP-Parser/lib/PhpParser/PrettyPrinterAbstract.php

Line 157 in b4b60c8

public function __construct(array $options = []) {