PHP mysqli_affected_rows() 函数

实例

从不同的查询中输出所影响记录行数：

<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno($con))
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

// Perform queries and print out affected rows
mysqli_query($con,"SELECT * FROM Persons");
echo "Affected rows: " . mysqli_affected_rows($con);

mysqli_query($con,"DELETE FROM Persons WHERE Age>32");
echo "Affected rows: " . mysqli_affected_rows($con);

mysqli_close($con);
?>

定义和用法

mysqli_affected_rows() 函数返回前一次 MySQL 操作（SELECT、INSERT、UPDATE、REPLACE、DELETE）所影响的记录行数。

语法

mysqliaffected_rows(_connection);

技术细节