I'd like Uri to be a little more explicit with port numbers about psr7 HOT 5 CLOSED

According to PSR-7 this should not happen.

If the port is the standard port used with the current scheme, this method SHOULD return null.

So this issue can be closed.

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Maybe I need a word with the PHP-FIG.

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I don't think it's a problem as it is per RFC 3986 that the port should be removed when it's the default.
And in the end it should not matter as the URIs are equal. And as a consumer you need to handle both null and the default port anyway from getPort as either can happen.

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Right, currently I'm doing

$port = $uri->getPort();
if (empty($port)) {
    $port = ($uri->getScheme() == 'https') ? 443 : 80;
}

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If you need the actual port, this is the way to go. (But I would explicitly test again null)

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