# Allowing type alias for built-in types

- Thread: https://externals.io/message/118692
- Original archive: https://news-web.php.net/php.internals/118692
- Started by olle.haerstedt@limesurvey.org on 2022-09-26T12:36:46+00:00
- Messages: 1
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## #118692 — olle.haerstedt@limesurvey.org — 2022-09-26T12:36:46+00:00

URL: https://externals.io/message/118692#118692

Has this been discussed before? Some use-cases:



use array as tuple;  // Could interact with Psalm/Phpstan to give more intentionality

use array as strings; // Same, together with "@param string[]" docblock

use int as meter;  // To communicate intent

etc



Hard-coded support in the parser could perhaps be added here? https://github.com/php/php-src/blob/master/Zend/zend_language_parser.y#L469



Olle Härstedt



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