[mcp-sdk] Use foreach instead of array_map because array_map does not accept generators

Author: dorrogeray

src/mcp-sdk/src/Server/RequestHandler/PromptListHandler.php

@@ -27,7 +27,14 @@ public function __construct(
     public function createResponse(Request $message): Response
     {
         $nextCursor = null;
-        $prompts = array_map(function (MetadataInterface $metadata) use (&$nextCursor) {
+        $prompts = [];
+
+        $metadataList = $this->collection->getMetadata(
+            $this->pageSize,
+            $message->params['cursor'] ?? null
+        );
+
+        foreach ($metadataList as $metadata) {
             $nextCursor = $metadata->getName();
             $result = [
                 'name' => $metadata->getName(),
@@ -55,8 +62,8 @@ public function createResponse(Request $message): Response
                 $result['arguments'] = $arguments;
             }
 
-            return $result;
-        }, $this->collection->getMetadata($this->pageSize, $message->params['cursor'] ?? null));
+            $prompts[] = $result;
+        }
 
         $result = [
             'prompts' => $prompts,

src/mcp-sdk/src/Server/RequestHandler/ResourceListHandler.php

@@ -27,7 +27,14 @@ public function __construct(
     public function createResponse(Request $message): Response
     {
         $nextCursor = null;
-        $resources = array_map(function (MetadataInterface $metadata) use (&$nextCursor) {
+        $resources = [];
+
+        $metadataList = $this->collection->getMetadata(
+            $this->pageSize,
+                $message->params['cursor'] ?? null
+        );
+
+        foreach ($metadataList as $metadata) {
             $nextCursor = $metadata->getUri();
             $result = [
                 'uri' => $metadata->getUri(),
@@ -49,8 +56,8 @@ public function createResponse(Request $message): Response
                 $result['size'] = $size;
             }
 
-            return $result;
-        }, $this->collection->getMetadata($this->pageSize, $message->params['cursor'] ?? null));
+            $resources[] = $result;
+        }
 
         $result = [
             'resources' => $resources,

src/mcp-sdk/src/Server/RequestHandler/ToolListHandler.php

@@ -27,19 +27,25 @@ public function __construct(
     public function createResponse(Request $message): Response
     {
         $nextCursor = null;
-        $tools = array_map(function (MetadataInterface $tool) use (&$nextCursor) {
+        $tools = [];
+
+        $metadataList = $this->collection->getMetadata(
+            $this->pageSize,
+            $message->params['cursor'] ?? null
+        );
+
+        foreach ($metadataList as $tool) {
             $nextCursor = $tool->getName();
             $inputSchema = $tool->getInputSchema();
-
-            return [
+            $tools[] = [
                 'name' => $tool->getName(),
                 'description' => $tool->getDescription(),
                 'inputSchema' => [] === $inputSchema ? [
                     'type' => 'object',
                     '$schema' => 'http://json-schema.org/draft-07/schema#',
                 ] : $inputSchema,
             ];
-        }, $this->collection->getMetadata($this->pageSize, $message->params['cursor'] ?? null));
+        }
 
         $result = [
             'tools' => $tools,