From 76bcb9d058314743027529245129be2d9fbbdb78 Mon Sep 17 00:00:00 2001
From: Tanguy Pruvot <tanguy.pruvot@gmail.com>
Date: Sun, 6 Sep 2015 18:14:40 +0200
Subject: [PATCH] Add function arraySafeVal to prevent php errors

---
 web/yaamp/core/backend/coins.php | 8 +++-----
 web/yaamp/core/common/util.php   | 7 +++++++
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/web/yaamp/core/backend/coins.php b/web/yaamp/core/backend/coins.php
index 015636c..a4ef47e 100644
--- a/web/yaamp/core/backend/coins.php
+++ b/web/yaamp/core/backend/coins.php
@@ -56,11 +56,9 @@ function BackendCoinsUpdate()
 		else
 			$difficulty = $remote->getdifficulty();
 
-		if(is_array($difficulty))
-		{
-			$coin->difficulty = $difficulty['proof-of-work'];
-			if(isset($difficulty['proof-of-stake']))
-				 $coin->difficulty_pos = $difficulty['proof-of-stake'];
+		if(is_array($difficulty)) {
+			$coin->difficulty = arraySafeVal($difficulty,'proof-of-work');
+			$coin->difficulty_pos = arraySafeVal($difficulty,'proof-of-stake');
 		}
 		else
 			$coin->difficulty = $difficulty;
diff --git a/web/yaamp/core/common/util.php b/web/yaamp/core/common/util.php
index 486cd9f..f06d2c0 100644
--- a/web/yaamp/core/common/util.php
+++ b/web/yaamp/core/common/util.php
@@ -5,6 +5,13 @@ function controller()
 	return app()->getController();
 }
 
+function arraySafeVal($arr,$p,$default=NULL)
+{
+	if (isset($arr[$p]))
+		return $arr[$p];
+	return $default;
+}
+
 function getparam($p)
 {
 	return isset($_REQUEST[$p])? $_REQUEST[$p]: '';