note 126504 added to language.types.declarations

Not explicit is that function parameters can also have union type declarations; they're not just for property and return value declarations. <?php declare(strict_types = 1); function foo(int|string $arg) { if(is_string($arg)) { echo "It's a string!\n"; } elseif(is_int($arg)) { echo "It's an integer!\n"; } else { echo "It shouldn't be here!\n"; } } foo(42); foo('bar'); foo([]); ---- Server IP: 45.112.84.4 Probable Submitter: 45.112.85.242 (proxied: 222.153.57.60) ---- Manual Page -- https://php.net/manual/en/language.types.declarations.php Edit -- https://main.php.net/note/edit/126504 Del: integrated -- https://main.php.net/note/delete/126504/integrated Del: useless -- https://main.php.net/note/delete/126504/useless Del: bad code -- https://main.php.net/note/delete/126504/bad+code Del: spam -- https://main.php.net/note/delete/126504/spam Del: non-english -- https://main.php.net/note/delete/126504/non-english Del: in docs -- https://main.php.net/note/delete/126504/in+docs Del: other reasons-- https://main.php.net/note/delete/126504 Reject -- https://main.php.net/note/reject/126504 Search -- https://main.php.net/manage/user-notes.php