From 5174335e62cfaa2f9ed4f21d7db3b1a4289db88f Mon Sep 17 00:00:00 2001
From: Brian Miyaji <brian@themeboy.com>
Date: Sun, 27 Apr 2014 17:36:52 +1000
Subject: [PATCH] Return default when equation is null

---
 includes/sp-core-functions.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/includes/sp-core-functions.php b/includes/sp-core-functions.php
index 2dd931ad..ed64723f 100644
--- a/includes/sp-core-functions.php
+++ b/includes/sp-core-functions.php
@@ -790,6 +790,9 @@ if ( !function_exists( 'sp_get_eos_safe_slug' ) ) {
 if ( !function_exists( 'sp_solve' ) ) {
 	function sp_solve( $equation, $vars, $precision = 0 ) {
 
+		if ( $equation == null )
+			return '-';
+
 		if ( strpos( $equation, '$streak' ) !== false ):
 
 			// Return direct value