111

src/Mysql/PDO.php

@@ -178,8 +178,8 @@ class PDO implements StopHeartbeatCheck
     /**
      * @param string $sql
      * @param array $params
-	 * @return array
-	 * @throws Exception
+     * @return bool|array|null
+     * @throws \Exception
      */
     public function fetchColumn(string $sql, array $params = []): bool|null|array
     {
@@ -216,10 +216,21 @@ class PDO implements StopHeartbeatCheck
     private function queryPrev(string $sql, array $params = []): PDOStatement
     {
         $this->_last = time();
+        try {
             if (($statement = $this->_pdo()->query($sql)) === false) {
                 throw new Exception($this->_pdo()->errorInfo()[1]);
             }
             return $this->bindValue($statement, $params);
+        } catch (\Throwable $throwable) {
+
+            if (str_contains($throwable->getMessage(), 'MySQL server has gone away')) {
+                $this->pdo = null;
+
+                return $this->queryPrev($sql, $params);
+            }
+
+            throw new Exception($throwable->getMessage());
+        }
     }