fix array_udiff stub

Author: schlndh

stubs/arrayFunctions.stub

@@ -58,17 +58,19 @@ function uksort(array &$array, callable $callback): bool
 }
 
 /**
- * @template T of mixed
+ * @template TV of mixed
+ * @template TK of mixed
  *
- * @param array<T> $one
- * @param array<T> $two
- * @param callable(T, T): int $three
+ * @param array<TK, TV> $one
+ * @param array<TK, TV> $two
+ * @param callable(TV, TV): int $three
+ * @return array<TK, TV>
  */
 function array_udiff(
     array $one,
     array $two,
     callable $three
-): int {}
+): array {}
 
 /**
  * @param array<array-key, mixed> $value

tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php

@@ -642,11 +642,11 @@ public function testArrayUdiffCallback(): void
 				14,
 			],
 			[
-				'Parameter #1 $arr1 of function array_udiff expects array<string>, null given.',
+				'Parameter #1 $arr1 of function array_udiff expects array<(int&TK)|(string&TK), string>, null given.',
 				20,
 			],
 			[
-				'Parameter #2 $arr2 of function array_udiff expects array<string>, null given.',
+				'Parameter #2 $arr2 of function array_udiff expects array<(int&TK)|(string&TK), string>, null given.',
 				21,
 			],
 			[