Describe the bug

When a PHP file contains the line namespace Timer;, Phpactor spawns a language-server:diagnostics process that becomes orphaned and does not terminate as expected. This issue does not occur with other namespace names.

Environment

$ php -v
PHP 8.4.10 (cli) (built: Jul  4 2025 12:41:44) (NTS)
Copyright (c) The PHP Group

$ phpactor -V
Phpactor 2025.04.17.0

To Reproduce

1. Create a directory (e.g., lsp-test).

2. Add two files:

   • code.php — contains the PHP code that triggers the issue.
   • lsp-test.php — a script that simulates an LSP client to reproduce the problem.

   Directory structure:

   lsp-test/
   ├── code.php
   └── lsp-test.php
   

   code.php

   <?php
   
   namespace Timer;

   lsp-test.php
   

   <?php
   
   function sendLspMessage($pipes, $message)
   {
       $lspMessage = "Content-Length: " . strlen($message) . "\r\n\r\n" . $message;
   
       echo "------------------\n"; // Debugging output
       echo ">>>\n$lspMessage\n"; // Debugging output
   
       fwrite($pipes[0], $lspMessage);
       fflush($pipes[0]);
   
       // Read response
       $response = '';
       while (!feof($pipes[1])) {
           $line = fgets($pipes[1]);
           if ($line === FALSE) {
               break;
           }
   
           $response .= $line;
           if (strpos($response, "\r\n\r\n") !== FALSE) {
               // Read the JSON content based on Content-Length
               if (preg_match('/Content-Length: (\d+)/', $response, $matches)) {
                   $contentLength = (int)$matches[1];
                   $jsonStart = strpos($response, "\r\n\r\n") + 4;
                   $currentJsonLength = strlen($response) - $jsonStart;
   
                   while ($currentJsonLength < $contentLength) {
                       $chunk = fread($pipes[1], $contentLength - $currentJsonLength);
                       $response .= $chunk;
                       $currentJsonLength = strlen($response) - $jsonStart;
                   }
   
                   break;
               }
           }
       }
   
       echo "<<<\n$response\n"; // Debugging output
       echo "------------------\n"; // Debugging output"
       return $response;
   }
   
   function initializeLsp($pipes, $rootPath)
   {
       $initRequest = [
           'jsonrpc' => '2.0',
           'id' => 1,
           'method' => 'initialize',
           'params' => [
               'processId' => getmypid(),
               'rootUri' => 'file://' . realpath($rootPath),
               'capabilities' => [
                   'textDocument' => [
                       'synchronization' => [
                           'didOpen' => TRUE,
                           'didChange' => TRUE,
                           'didClose' => TRUE,
                       ],
                   ],
               ],
           ],
       ];
   
       $jsonRequest = json_encode($initRequest);
       return sendLspMessage($pipes, $jsonRequest);
   }
   
   function openDocument($pipes, $filePath)
   {
       $lspRequest = [
           'jsonrpc' => '2.0',
           'method' => 'textDocument/didOpen',
           'params' => [
               'textDocument' => [
                   'uri' => 'file://' . realpath($filePath),
                   'languageId' => 'php',
                   'version' => 1,
                   'text' => file_get_contents($filePath),
               ],
           ],
       ];
   
       $jsonRequest = json_encode($lspRequest);
       return sendLspMessage($pipes, $jsonRequest);
   }
   
   function shutdownLsp($pipes)
   {
       $shutdownRequest = [
           'jsonrpc' => '2.0',
           'id' => 2,
           'method' => 'shutdown',
           'params' => NULL,
       ];
   
       $jsonRequest = json_encode($shutdownRequest);
       return sendLspMessage($pipes, $jsonRequest);
   }
   
   function exitLsp($pipes)
   {
       $exitNotification = [
           'jsonrpc' => '2.0',
           'method' => 'exit',
           'params' => NULL,
       ];
   
       $jsonRequest = json_encode($exitNotification);
       return sendLspMessage($pipes, $jsonRequest);
   }
   
   // ----------------------------------------------------
   
   // Launch phpactor language server using proc_open
   $descriptorspec = [
       0 => ['pipe', 'r'], // stdin
       1 => ['pipe', 'w'], // stdout
       2 => ['pipe', 'w'],  // stderr
   ];
   
   
   $lspCmd = 'phpactor language-server';
   echo "!!! Starting phpactor language server by command: {$lspCmd}\n";
   $process = proc_open($lspCmd, $descriptorspec, $pipes);
   if (!is_resource($process)) {
       echo "Failed to start phpactor language server, please change the command or check your installation.\n";
       exit(1);
   }
   
   // Initialize LSP
   initializeLsp($pipes, __DIR__);
   echo "!!! Initialize completed\n";
   // Send initialized notification
   $initializedNotification = json_encode(
       [
           'jsonrpc' => '2.0',
           'method' => 'initialized',
           'params' => [],
       ]
   );
   sendLspMessage($pipes, $initializedNotification);
   echo "!!! Initialized notification sent\n";
   
   // Open document
   openDocument($pipes, __DIR__ . '/code.php');
   echo "!!! Document opened\n";
   
   // Wait for a while to ensure the server is ready and processing the document
   sleep(10);
   
   // Shutdown LSP server gracefully
   shutdownLsp($pipes);
   echo "!!! Shutdown request sent\n";
   
   // Send exit notification
   exitLsp($pipes);
   echo "!!! Exit notification sent\n";
   
   // Close pipes and process
   fclose($pipes[0]);
   fclose($pipes[1]);
   fclose($pipes[2]);
   proc_close($process);

3. Run php lsp-test.php to simulate an LSP client and trigger the issue.

   Demo phpactor.mp4