# mysql_stat

(PHP 4 >= 4.3.0, PHP 5, PECL mysql:1.0)

mysql_stat — Get current system status

### Description

string mysql_stat ([ resource `$link_identifier` ] )

mysql_stat() returns the current server status.

### Parameters

`link_identifier`

  The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect() is assumed. If no such link is found, it will try to create one as if mysql_connect() was called with no arguments. If by chance no connection is found or established, an `E_WARNING` level warning is generated.

### Return Values

Returns a string with the status for uptime, threads, queries, open tables, flush tables and queries per second. For a complete list of other status variables, you have to use the SHOW STATUS SQL command. If `link_identifier` is invalid, `NULL` is returned.

### Examples

Example#1 mysql_stat() example

`<?php
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
$status = explode(' ', mysql_stat($link));
print_r($status);
?>`

The above example will output something similar to:

    Array
    (
        [0] => Uptime: 5380
        [1] => Threads: 2
        [2] => Questions: 1321299
        [3] => Slow queries: 0
        [4] => Opens: 26
        [5] => Flush tables: 1
        [6] => Open tables: 17
        [7] => Queries per second avg: 245.595
    )

Example#2 Alternative mysql_stat() example

`<?php
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
$result = mysql_query('SHOW VARIABLES', $link);
while ($row = mysql_fetch_assoc($result)) {
echo $row['Variable_name'] . ' = ' . $row['Value'] . "\n";
}
?>`

The above example will output something similar to:

    back_log = 50
    basedir = /usr/local/
    bdb_cache_size = 8388600
    bdb_log_buffer_size = 32768
    bdb_home = /var/db/mysql/
    bdb_max_lock = 10000
    bdb_logdir =
    bdb_shared_data = OFF
    bdb_tmpdir = /var/tmp/
    ...

### See Also

- mysql_get_server_info()
- mysql_list_processes()