phpstan-src/tests/PHPStan/Analyser/nsrt/bug-4090.php at 0e31ce7c42fea32c09b7d128e35b994f3c2b998c · phpstan/phpstan-src · GitHub

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<?php declare(strict_types = 1);

namespace Bug4090;

use function PHPStan\Testing\assertType;

/** @param string[] $a */
function foo(array $a): void
{
	if (count($a) > 1) {
		assertType('non-empty-array<string>', $a);
		echo implode(',', $a);
	} elseif (count($a) === 1) {
		assertType('non-empty-array<string>', $a);
		echo trim(current($a));
	}
}


/** @param string[] $a */
function bar(array $a): void
{
	$count = count($a);
	if ($count > 1) {
		assertType('non-empty-array<string>', $a);
		echo implode(',', $a);
	} elseif ($count === 1) {
		assertType('non-empty-array<string>', $a);
		echo trim(current($a));
	}
}


/** @param string[] $a */
function qux(array $a): void
{
	switch (count($a)) {
		case 0:
			assertType('array{}', $a);
			break;
		case 1:
			assertType('non-empty-array<string>', $a);
			echo trim(current($a));
			break;
		default:
			assertType('non-empty-array<string>', $a);
			echo implode(',', $a);
			break;
	}
}