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

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