MySQLi - 连接 Errno

语法

int mysqli_connect_errno ( void )

定义和用法

它返回来自上次连接调用的错误代码

示例

尝试以下示例 -

<?php
   $servername = "localhost:3306";
   $username = "root";
   $password = "";
   $dbname = "TUTORIALS";
   $conn = new mysqli($servername, $username, $password, $dbname);

   if ($conn->connect_error) {
      die("Connection failed: " . mysqli_connect_errno());
   } 
   echo "Database connected";
   mysqli_autocommit($conn,FALSE);
   mysqli_query($conn,"INSERT INTO tutorials_auto (id,name)
   
   VALUES (10,'sai')");
   mysqli_commit($conn);
   
   mysqli_close($conn);
?>

上述代码的示例输出应该如下所示 -

Database connected

在上述示例中，如果你给出了错误的服务器认证详情，它将给出一个连接错误号。