Narrow return type of wp_get_server_protocol

functionMap.php

@@ -133,6 +133,7 @@
     'wp_get_post_terms' => ["(\$post_id is 0 ? array{} : (\$taxonomy is empty ? array{} : ((\$args is array{fields: 'names'|'slugs'}&array ? list<string> : (\$args is array{fields: 'id=>name'|'id=>slug'}&array ? array<int, string> : (\$args is array{fields: 'id=>parent'}&array ? array<int, int> : (\$args is array{fields: 'ids'|'tt_ids'}&array ? list<int> : (\$args is array{fields: 'count'}&array ? numeric-string : array<int, \WP_Term>)))))|\WP_Error)))"],
     'wp_get_schedule' => [null, 'args' => $cronArgsType],
     'wp_get_scheduled_event' => [null, 'args' => $cronArgsType],
+    'wp_get_server_protocol' => ["'HTTP/1.0'|'HTTP/1.1'|'HTTP/2'|'HTTP/2.0'|'HTTP/3'"],
     'wp_insert_attachment' => ['($wp_error is false ? int<0, max> : int<1, max>|\WP_Error)'],
     'wp_insert_category' => ['($wp_error is false ? int<0, max> : int<1, max>|\WP_Error)'],
     'wp_insert_link' => ['($wp_error is false ? int<0, max> : int<1, max>|\WP_Error)'],

tests/TypeInferenceTest.php

@@ -64,6 +64,7 @@ public function dataFileAsserts(): iterable
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_get_post_tags.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_get_post_terms.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_get_object_terms.php');
+        yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_get_server_protocol.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_is_numeric_array.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_list_bookmarks.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_list_categories.php');

tests/data/wp_get_server_protocol.php

@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpStubs\WordPress\Core\Tests;
+
+use function wp_get_server_protocol;
+use function PHPStan\Testing\assertType;
+
+assertType("'HTTP/1.0'|'HTTP/1.1'|'HTTP/2'|'HTTP/2.0'|'HTTP/3'", wp_get_server_protocol());
+assertType('false', wp_get_server_protocol() === 'HTTP/1');
+assertType('bool', wp_get_server_protocol() === 'HTTP/3');
+assertType('bool', wp_get_server_protocol() === Faker::string());

wordpress-stubs.php

@@ -121207,6 +121207,7 @@ function wp_is_internal_link($link)
      * @since 4.4.0
      *
      * @return string The HTTP protocol. Default: HTTP/1.0.
+     * @phpstan-return 'HTTP/1.0'|'HTTP/1.1'|'HTTP/2'|'HTTP/2.0'|'HTTP/3'
      */
     function wp_get_server_protocol()
     {