Ensure http_response_header is a list<string>

Author: Seldaek

src/Analyser/NodeScopeResolver.php

@@ -2354,7 +2354,7 @@ static function (): void {
 				$functionReflection !== null
 				&& in_array($functionReflection->getName(), ['fopen', 'file_get_contents'], true)
 			) {
-				$scope = $scope->assignVariable('http_response_header', new ArrayType(new IntegerType(), new StringType()), new ArrayType(new IntegerType(), new StringType()));
+				$scope = $scope->assignVariable('http_response_header', AccessoryArrayListType::intersectWith(new ArrayType(new IntegerType(), new StringType())), new ArrayType(new IntegerType(), new StringType()));
 			}
 
 			if (

tests/PHPStan/Analyser/NodeScopeResolverTest.php

@@ -1441,6 +1441,7 @@ public function dataFileAsserts(): iterable
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/preserve-large-constant-array.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/bug-9397.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/bug-10080.php');
+		yield from $this->gatherAssertTypes(__DIR__ . '/data/http-response-header.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/impure-error-log.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/falsy-isset.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/falsey-coalesce.php');

tests/PHPStan/Analyser/data/http-response-header.php

@@ -0,0 +1,8 @@
+<?php
+
+use function PHPStan\Testing\assertType;
+use function PHPStan\Testing\assertNativeType;
+
+file_get_contents('https://example.org');
+assertType('list<string>', $http_response_header);
+assertNativeType('array<int, string>', $http_response_header);