PHP. Руководство по PHP. 2005

maxdb_ping

Пред.

След.

maxdb_ping

(PECL)maxdb_ping

(no version information, might be only in CVS)maxdb->ping --

Pings a server connection, or tries to reconnect if the connection has gone down

Description

Procedural style:bool maxdb_ping (resource link)

Object oriented style (method):class maxdb {

bool ping (void)

}

Checks whether the connection to the server is working. If it has gone

down, and global option maxdb.reconnect is enabled

an automatic reconnection is attempted.

This function can be used by clients that remain idle for a long while,

to check whether the server has closed the connection and reconnect if

necessary.

Return values

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

Example

Пример 1. Object oriented style
<?php $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()){ printf("Connect failed: %s\n", maxdb_connect_error()); exit(); } /* check if server is alive */ if ($maxdb->ping()){ printf ("Our connection is ok!\n"); } else { printf ("Error: %s\n", $maxdb->error); } /* close connection */ $maxdb->close(); ?>

Пример 2. Procedural style
<?php $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()){ printf("Connect failed: %s\n", maxdb_connect_error()); exit(); } /* check if server is alive */ if (maxdb_ping($link)){ printf ("Our connection is ok!\n"); } else { printf ("Error: %s\n", maxdb_error($link)); } /* close connection */ maxdb_close($link); ?>

The above examples would produce the following output:
Our connection is ok!

Пред.
Начало
След.
maxdb_param_count
Уровень выше
maxdb_prepare

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

Ваше письмо	×