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# mysqli_stat

(PHP 5)

mysqli_stat

(no version information, might be only in CVS)

mysqli->stat() -- Gets the current system status

## 说明

Procedural style:

string mysqli_stat ( mysqli link )

Object oriented style (method):

class mysqli {
string stat ( void )
}

mysqli_stat() returns a string containing information similar to that provided by the 'mysqladmin status' command. This includes uptime in seconds and the number of running threads, questions, reloads, and open tables.

## 参数

`link`

  Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()

## 返回值

A string describing the server status. `FALSE` if an error occurred.

## 范例

例 1. Object oriented style

`<?php $mysqli = new mysqli("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } printf ("System status: %s\n", $mysqli->stat()); $mysqli->close(); ?>`

例 2. Procedural style

`<?php $link = mysqli_connect("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } printf("System status: %s\n", mysqli_stat($link)); mysqli_close($link); ?>`

上例将输出：

    System status: Uptime: 272  Threads: 1  Questions: 5340  Slow queries: 0
    Opens: 13  Flush tables: 1  Open tables: 0  Queries per second avg: 19.632
    Memory in use: 8496K  Max memory used: 8560K

## 参见

mysqli_get_server_info()

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