[8.x] Use first host if multiple (#40226)

* fixes #40186 : use first host if multiple

* Update DbCommand.php

Co-authored-by: Taylor Otwell <[email protected]>

Author: jelib3an

src/Illuminate/Database/Console/DbCommand.php

@@ -67,8 +67,16 @@ public function getConnection()
         }
 
         if ($this->option('read')) {
+            if (is_array($connection['read']['host'])) {
+                $connection['read']['host'] = $connection['read']['host'][0];
+            }
+
             $connection = array_merge($connection, $connection['read']);
         } elseif ($this->option('write')) {
+            if (is_array($connection['write']['host'])) {
+                $connection['write']['host'] = $connection['write']['host'][0];
+            }
+
             $connection = array_merge($connection, $connection['write']);
         }