PHP mysqli info() 函数

示例 - 面向对象风格

返回有关上次执行的查询的信息：

<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");

if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
exit();
}

// Perform some queries
$mysqli -> query("CREATE TABLE testPersons LIKE Persons");
$mysqli -> query("INSERT INTO testPersons SELECT * FROM Persons ORDER BY LastName");

echo $mysqli -> info;

$mysqli -> close();
?>

查看底部的程序样式示例。

定义和用法

info / mysqli_info() 函数返回有关上次执行的查询的信息。

此函数适用于以下查询类型：

插入...选择...
插入...值 (...),(...),(...)
加载数据INFILE ...
更改表...
更新 ...

语法

面向对象风格：

$mysqli -> info

程序风格：

mysqli_info( connection)

参数值

Parameter	Description
connection	Required. Specifies the MySQL connection to use

技术细节

返回值：	包含有关上次执行的查询的附加信息的字符串
PHP 版本：	5+

示例 - 程序风格

返回有关上次执行的查询的信息：

<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");

if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}

// Perform som queries
mysqli_query($con, "CREATE TABLE testPersons LIKE Persons");
mysqli_query($con, "INSERT INTO testPersons SELECT * FROM Persons ORDER BY LastName");

echo mysqli_info($con);

mysqli_close($con);
?>

❮ PHP MySQLi 参考