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mysqli::$server_info

mysqli_get_server_info

(PHP 5, PHP 7)

mysqli::$server_info -- mysqli_get_server_info返回MySQL服务器的版本号

说明

面向对象风格

过程化风格

string mysqli_get_server_info ( mysqli $link )

返回一个字符串,表述MySQLi扩展连接的MySQL服务器的版本号.

参数

link

仅以过程化样式:由mysqli_connect()mysqli_init() 返回的链接标识。

返回值

一个特征字符串,表述服务器的版本.

范例

Example #1 $mysqli->server_info example

面向对象风格

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

/* check connection */
if (mysqli_connect_errno()) {
    
printf("Connect failed: %s\n"mysqli_connect_error());
    exit();
}

/* print server version */
printf("Server version: %s\n"$mysqli->server_info);

/* close connection */
$mysqli->close();
?>

过程化风格

<?php
$link 
mysqli_connect("localhost""my_user""my_password");

/* check connection */
if (mysqli_connect_errno()) {
    
printf("Connect failed: %s\n"mysqli_connect_error());
    exit();
}

/* print server version */
printf("Server version: %s\n"mysqli_get_server_info($link));

/* close connection */
mysqli_close($link);
?>

以上例程会输出:

Server version: 4.1.2-alpha-debug

参见

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User Contributed Notes 1 note

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it-solutions at schultz dot ch
1 year ago
Please note that this property returns different versionstrings for MariaDB instances on LINUX and WINDOWS environments.

For a MariaDB instance 10.0.17:

on LINUX, this returns strings like "10.0.17-MariaDB-log"
on WINDOWS environments, this returns strings like "5.5.5-10.0.17-MariaDB-log"

To avoid this extra "5.5.5" on windows environments, you could use the SQL query "select version();" rather than this property of the mysqli extension
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