php-ast exports the AST internally used by PHP 7.
php-ast is significantly faster than PHP-Parser, because the AST construction is implemented in C.
However, php-ast may only parse code that is syntactically valid on the version of PHP it runs on.
- Recommend using the new constant `ast\flags\PARAM_MODIFIER_*` when checking if parameters use constructor property promotion.
The values of `ast\flags\MODIFIER_*` and `ast\flags\PARAM_VARIADIC` had some overlap in some php 7 versions.
The new constants will have the same values as `ast\flags\MODIFIER_*` in PHP 8.0+, but different values in PHP 7
(and these flags will never be set in php 7).
- Support PHP 8.0's named arguments.
- Support PHP 8.0's nullsafe operator (`?->`).