PHP 7.1.0 Released

mysqli::stat

mysqli_stat

(PHP 5)

mysqli::stat -- mysqli_statGets the current system status

Descrizione

Stile orientato agli oggetti

string mysqli::stat ( void )

Stile procedurale

string mysqli_stat ( mysqli $link )

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.

Elenco dei parametri

link

Solo nello stile procedurale: un identificatore restituito da mysqli_connect() o mysqli_init()

Valori restituiti

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

Esempi

Example #1 mysqli::stat() example

Stile orientato agli oggetti

<?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();
?>

Stile procedurale

<?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);
?>

I precedenti esempi visualizzeranno:

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

Vedere anche:

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User Contributed Notes 1 note

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amosjohlong at hotmail dot com
11 days ago
Here is an explanation of the values that appear in connection->stat() returned string. It was taken from Ai Hua's April 29, 2006 answer on http://forums.mysql.com/read.php?12,86570,86570.

Uptime--The number of seconds the MySQL server has been running.

Threads--The number of active threads (clients).

Questions--The number of questions (queries) from clients since the server was started.

Slow queries--The number of queries that have taken more than long_query_time seconds.

Opens--The number of tables the server has opened.

Flush tables--The number of flush-*, refresh, and reload commands the server has executed.

Open tables--The number of tables that currently are open.

Queries per second avg--Questions divided by Uptime
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