Use of unassigned variable

weissersand

<?php
function q()
	{
	$q = match ($foo ??= 'bar')
		{
		//...
		};
	}

[{
	"resource": "Untitled-1",
	"owner": "_generated_diagnostic_collection_name_#6",
	"code": "PHP1412",
	"severity": 8,
	"message": "Use of unassigned variable '$foo'",
	"source": "PHP",
	"startLineNumber": 4,
	"startColumn": 14,
	"endLineNumber": 4,
	"endColumn": 18,
	"modelVersionId": 64,
	"origin": "extHost1"
}]

JakubMisek

weissersand thank you for the suggestion.

This looks correct, since ??= is a shorthand for $foo = $foo ?? 'bar'; and $foo is not initialized yet.

weissersand

JakubMisek Neither of them emit a warning, but it inconsistently emits the shown warning within match ()

JakubMisek

weissersand, sorry for the late reply.

For me, the diagnostics are consistent (the editor is not differentiating between those two cases)

Do you have an example where it's unexpected?