MySQLi - Affected Rows

语法

mysqli_affected_rows(connection);

定义和用法

它用于获取有关先前 MySQL 操作中受影响的行数的信息。

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

上述代码的示例输出应该是这样的 −

Database connected Affected rows: 2

mysqli_useful_functions.html