fix combinations count

Author: staabm

src/Type/Php/ImplodeFunctionReturnTypeExtension.php

@@ -22,7 +22,6 @@
 use function count;
 use function implode;
 use function in_array;
-use const COUNT_RECURSIVE;
 
 final class ImplodeFunctionReturnTypeExtension implements DynamicFunctionReturnTypeExtension
 {
@@ -116,15 +115,17 @@ private function inferConstantType(ConstantArrayType $arrayType, ConstantStringT
 $valueTypes = $array->getValueTypes();
 
 $arrayValues = [];
+$combinationsCount = 1;
 foreach ($valueTypes as $valueType) {
 $constScalars = $valueType->getConstantScalarValues();
 if (count($constScalars) === 0) {
 return null;
 }
 $arrayValues[] = $constScalars;
+$combinationsCount *= count($constScalars);
 }
 
-if (count($strings) + count($arrayValues, COUNT_RECURSIVE) > InitializerExprTypeResolver::CALCULATE_SCALARS_LIMIT) {
+if (count($strings) + $combinationsCount > InitializerExprTypeResolver::CALCULATE_SCALARS_LIMIT) {
 return null;
 }