update php readme.

sdks/php-client/README.md

@@ -11,7 +11,7 @@ This is the PHP SDK for the Dify API, which allows you to easily integrate Dify
 
 After installing the SDK, you can use it in your project like this:
 
-```
+```php
 <?php
 
 require 'vendor/autoload.php';
@@ -26,17 +26,39 @@ $difyClient = new DifyClient($apiKey);
 
 // Create a completion client
 $completionClient = new CompletionClient($apiKey);
-$response = $completionClient->create_completion_message($inputs, $response_mode, $user, $files);
+$response = $completionClient->create_completion_message(array("query" => "Who are you?"), "blocking", "user_id");
 
 // Create a chat client
 $chatClient = new ChatClient($apiKey);
-$response = $chatClient->create_chat_message($inputs, $query, $user, $response_mode, $conversation_id, $files);
+$response = $chatClient->create_chat_message(array(), "Who are you?", "user_id", "blocking", $conversation_id);
+
+$fileForVision = [
+    [
+        "type" => "image",
+        "transfer_method" => "remote_url",
+        "url" => "your_image_url"
+    ]
+];
+
+// $fileForVision = [
+//     [
+//         "type" => "image",
+//         "transfer_method" => "local_file",
+//         "url" => "your_file_id"
+//     ]
+// ];
+
+// Create a completion client with vision model like gpt-4-vision
+$response = $completionClient->create_completion_message(array("query" => "Describe this image."), "blocking", "user_id", $fileForVision);
+
+// Create a chat client with vision model like gpt-4-vision
+$response = $chatClient->create_chat_message(array(), "Describe this image.", "user_id", "blocking", $conversation_id, $fileForVision);
 
 // Fetch application parameters
-$response = $difyClient->get_application_parameters($user);
+$response = $difyClient->get_application_parameters("user_id");
 
 // Provide feedback for a message
-$response = $difyClient->message_feedback($message_id, $rating, $user);
+$response = $difyClient->message_feedback($message_id, $rating, "user_id");
 
 // Other available methods:
 // - get_conversation_messages()