From 72b83b55e5e877aef0e361f0149472d794667e54 Mon Sep 17 00:00:00 2001
From: vga256 <vga@vga256.com>
Date: Wed, 5 Jul 2023 21:07:45 -0600
Subject: [PATCH] search.php: - prevent script crash when usort() is performed
 on an empty database result, when using full-body search

---
 Rocksolid_Light/rocksolid/search.php | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/Rocksolid_Light/rocksolid/search.php b/Rocksolid_Light/rocksolid/search.php
index 9d2f7da..4e4c108 100644
--- a/Rocksolid_Light/rocksolid/search.php
+++ b/Rocksolid_Light/rocksolid/search.php
@@ -286,9 +286,14 @@ function get_body_search($group, $terms) {
       }
       $dbh = null;
     }
-  usort($overview, function($a, $b) {
-    return $a['rank'] <=> $b['rank'];
-  });
+    // do not perform a usort of an empty search result
+    if ($overview != null)
+    {
+      usort($overview, 
+	function($a, $b) {
+      		return $a['rank'] <=> $b['rank'];
+  	});
+    }
   return $overview;
 }