Added chat with LLama3 + fixed qa example

Author: ezimuel

src/rag/fwdays/chat_llama3.php

@@ -0,0 +1,21 @@
+<?php
+/**
+ * Chat example with LLPhant
+ */
+
+use LLPhant\Chat\OllamaChat;
+use LLPhant\OllamaConfig;
+
+require dirname(dirname(dirname(__DIR__))) . '/vendor/autoload.php';
+
+# Ollama with Llama3
+$config = new OllamaConfig();
+$config->model = 'llama3.1';
+$chat = new OllamaChat($config);
+
+while (true) {
+    $question = readline('(Llama 3.1) ask me anything: ');
+    $response = $chat->generateText($question);
+
+    printf("%s\n", $response);
+}

src/rag/fwdays/qa.php

@@ -40,5 +40,5 @@
 
 foreach ($qa->getRetrievedDocuments() as $doc) {
     printf("-- Document: %s\n", $doc->sourceName);
-    printf("-- Content (%d characters): %s\n", strlen($doc->content), $doc->content);
+    printf("-- Content (%d characters): %s\n", strlen($doc->content), substr($doc->content, 0, 100));
 }