call-user-func-array-php8.php

<?php // lint >= 8.0

namespace CallUserFuncArrayPhp8;

use function PHPStan\Testing\assertType;

/**
 * @template T
 * @param T $t
 * @return T
 */
function generic($t) {
	return $t;
}

/**
 * @template T
 * @param T $t
 * @return T
 */
function generic3($t = '', int $b = 100, string $c = '') {
	return $t;
}


function fun3($a = '', $b = '', $c = ''): int {
	return 1;
}

class Foo {
	function doNamed() {
		assertType('1', call_user_func_array('CallUserFuncPhp8\generic', ['t' => 1]));
		assertType('array{1, 2, 3}', call_user_func_array('CallUserFuncPhp8\generic', ['t' => [1, 2, 3]]));

		assertType('array{1, 2, 3}', call_user_func_array('CallUserFuncPhp8\generic3', ['t' => [1, 2, 3]]));
		assertType('\'\'', call_user_func_array('CallUserFuncPhp8\generic3', ['b' => 150]));
		assertType('\'\'', call_user_func_array('CallUserFuncPhp8\generic3', ['c' => 'lala']));
		assertType('\'\'', call_user_func_array(args: ['c' => 'lala'], callback: 'CallUserFuncPhp8\generic3'));

		assertType('int', call_user_func_array('CallUserFuncPhp8\fun3', ['a' => [1, 2, 3]]));
		assertType('int', call_user_func_array('CallUserFuncPhp8\fun3', ['b' => [1, 2, 3]]));
		assertType('int', call_user_func_array('CallUserFuncPhp8\fun3', ['c' => [1, 2, 3]]));
		assertType('int', call_user_func_array('CallUserFuncPhp8\fun3', ['a' => [1, 2, 3], 'c' => 'c']));
	}
}