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(PHP 5)
mysqli::stat -- mysqli_stat — Gets the current system status
面向对象风格
过程化风格
$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.
link
仅以过程化样式:由 mysqli_connect() 或 mysqli_init() 返回的链接标识。
A string describing the server status. FALSE
if an error occurred.
Example #1 mysqli::stat() example
面向对象风格
<?php
$mysqli = new mysqli ( "localhost" , "my_user" , "my_password" , "world" );
if ( mysqli_connect_errno ()) {
printf ( "Connect failed: %s\n" , mysqli_connect_error ());
exit();
}
printf ( "System status: %s\n" , $mysqli -> stat ());
$mysqli -> close ();
?>
过程化风格
<?php
$link = mysqli_connect ( "localhost" , "my_user" , "my_password" , "world" );
if ( mysqli_connect_errno ()) {
printf ( "Connect failed: %s\n" , mysqli_connect_error ());
exit();
}
printf ( "System status: %s\n" , mysqli_stat ( $link ));
mysqli_close ( $link );
?>
以上例程会输出:
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