mysqli::$server_info
mysqli_get_server_info
(PHP 5, PHP 7, PHP 8)
mysqli::$server_info -- mysqli_get_server_info — 返回MySQL服务器的版本号
返回值
一个特征字符串，表述服务器的版本.
范例
示例 #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
- mysqli_get_client_info() - 获取 MySQL 客户端信息
- mysqli_get_client_version() - 作为一个整数返回MySQL客户端的版本
- mysqli_get_server_version() - 作为一个整数返回MySQL服务器的版本
add a note
User Contributed Notes 1 note
it-solutions at schultz dot ch ¶
6 years 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
备份地址：http://www.lvesu.com/blog/php/mysqli.get-server-info.php