MySQLi - Errno

语法

int mysqli_errno ( mysqli $link )

定义和用法

它返回最近函数调用的错误代码。

示例

试试下面的例子 −

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

   if ($conn->connect_error) {
      die('Connect Error (' . mysqli_connect_errno() . ') '. mysqli_connect_error());
      exit();
   }   
   if (!mysqli_query($conn, "SET a = 1")) {
      printf("Errorcode: %d
", mysqli_errno($conn));
   }
   echo 'Success... ' . mysqli_get_host_info($conn) . "
";
   mysqli_dump_debug_info($conn);
   mysqli_autocommit($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是这样的 −

Errorcode: 1193 Success... localhost:3306 via TCP/IP

在上面的示例中，如果您提供了错误的身份验证详细信息，它将返回最近函数的错误代码

mysqli_useful_functions.html