[UPD]: modif for pull request

Author: Bruno

src/client.php

@@ -33,7 +33,7 @@ public function textRequest($text, $options=null)
   {
     if ($options === null) {
       $token = $this->token;
-    } else if (array_key_exists($options, 'token')) {
+    } else if (array_key_exists('token', $options)) {
       $token = $options['token'];
     }
 
@@ -96,7 +96,7 @@ public  function fileRequest($file, $options=null)
   {
     if ($options === null) {
       $token = $this->token;
-    } else if (array_key_exists($options, 'token')) {
+    } else if (array_key_exists('token', $options)) {
       $token = $options['token'];
     }
 

src/conversation.php

@@ -74,7 +74,7 @@ public function nextActions() {
   public function memory($name=null) {
     if ($name === null) {
       return ($this->memory);
-    } else if (array_key_exists($this->memory, $name)) {
+    } else if (array_key_exists($name, $this->memory)) {
       return ($this->memory->$name);
     } else {
       return (null);