Update MySQLConnection.php

MySQLConnection->Close now checks if connection is open before closing

Author: nsiatras

berry/mysql/MySQLConnection.php

@@ -4,6 +4,7 @@ class MySQLConnection
 {
 
     private mysqli $fLink; // The mysqli link with the selected MySQL database
+    private bool $fConnectionIsOpen = false;
 
     /**
      * Constructs a new MySQLConnection
@@ -19,13 +20,15 @@ public function __construct(string $serverIP, string $database, string $user, st
 
         if ($this->fLink->connect_errno)
         {
-            throw new Exception("Failed to connect to MySQL: (" . $this->fLink->connect_errno . ") " . $this->fLink->connect_error);
+            throw new Exception("Failed to connect to MySQL:" . $this->fLink->connect_error);
         }
 
         if ($charset != "")
         {
             $this->fLink->set_charset($charset);
         }
+        
+        $this->fConnectionIsOpen = true;
     }
 
     /**
@@ -44,7 +47,12 @@ public function EscapeString(string $string): string
      */
     public function Close(): void
     {
-        $this->fLink->close();
+        // Check if connection (fLink) is open before closing it
+        if ($this->fConnectionIsOpen)
+        {
+            $this->fLink->close();
+            $this->fConnectionIsOpen = false;
+        }
     }
 
     /**
@@ -55,7 +63,6 @@ public function getLink(): mysqli
     {
         return $this->fLink;
     }
-
 }
 
 ?>