MySQLi - 影响行数

语法

mysqli_affected_rows(connection);

定义及用法

它用来获取先前 MySQL 操作中受影响的行数的信息。

示例

试用以下示例 −

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

   if ($conn->connect_error) {
      die("Connection failed: " . $conn->connect_error);
   } 
   echo"Database connected \n";
   
   $sql = "SELECT * FROM Tutorials_auto";
   mysqli_query($conn,$sql); 
   echo "Affected rows: " . mysqli_affected_rows($conn);
   
   $conn->close();
?>

以上代码的示例输出应如下 −

Database connected Affected rows: 2