Use require_once instead

src/Handlers.php

@@ -1,6 +1,6 @@
 <?php
 
-require 'MessageHandler.php';
+require_once 'MessageHandler.php';
 
 class TestHandler implements MessageHandler
 {

src/entryPoint.php

@@ -10,7 +10,8 @@ define("INTER_ROOM", 111213);
 
 // randomorg($start,$end);
 
-require 'Handlers.php';
+require_once 'MessageHandler.php';
+require_once 'Handlers.php';
 
 $handlers = array(
     new TestHandler()

src/repl.php

@@ -1,5 +1,5 @@
 <?php
-require 'entryPoint.php';
+require_once 'entryPoint.php';
 if(!defined("STDIN")) {
     define("STDIN", fopen('php://stdin','r'));
 }
@@ -9,9 +9,10 @@ $msg_id = 0;
 
 echo "Starting test REPL\n";
 do {
+    echo $msg_id, ' > ';
     $input = fread(STDIN, 80); // Read up to 80 characters or a newline
     $trimmed = trim($input);
 
-    echo $msg_id, ' > ' , reply_user($room_id, $msg_id, $trimmed) , "\n";
+    echo reply_user($room_id, $msg_id, $trimmed) , "\n";
     $msg_id++;
 } while($trimmed !== "exit");