From 62b57ea58c0e0ff2f3848fe01a4a43dfbfd26699 Mon Sep 17 00:00:00 2001
From: Lawrence Lagerlof <llagerlof@gmail.com>
Date: Tue, 5 Apr 2022 02:11:08 -0300
Subject: [PATCH] Fix: Columns must match as of the first row

---
 src/JSONDB.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/JSONDB.php b/src/JSONDB.php
index aa7c49d..ab6911e 100644
--- a/src/JSONDB.php
+++ b/src/JSONDB.php
@@ -217,7 +217,7 @@ public function insert($file, array $values)
             }
 
             foreach ($values as $col => $val) {
-                if (! isset($first_row[$col])) {
+                if (! array_key_exists($col, $first_row)) {
                     $unmatched_columns = 1;
                     break;
                 }