maxdb_ping

maxdb::ping

(PECL maxdb >= 1.0)

maxdb_ping -- maxdb::ping — Pings a server connection, or tries to reconnect if the connection has gone down

설명

절차식 형식

bool maxdb_ping ( resource $link )

객체 기반 형식

bool maxdb::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.

반환값

성공 시 TRUE를, 실패 시 FALSE를 반환합니다.

예제

Example #1 객체 기반 형식


<?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();
?>

Example #2 절차식 형식


<?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);
?>

위 예제의 출력 예시:

Our connection is ok!