MysqlndUhConnection::ping

(PECL mysqlnd-uh >= 1.0.0-alpha)

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

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public MysqlndUhConnection::ping ( mysqlnd_connection $connection ) : bool

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

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connection

Mysqlnd connection handle. Do not modify!

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Returns TRUE on success. Otherwise, returns FALSE

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Example #1 MysqlndUhConnection::ping() example

<?php
class proxy extends MysqlndUhConnection {
 public function ping($res) {
  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));
  $ret = parent::ping($res);
  printf("%s returns %s\n", __METHOD__, var_export($ret, true));
  return $ret;
 }
}
mysqlnd_uh_set_connection_proxy(new proxy());

$mysqli = new mysqli("localhost", "root", "", "test");
$mysqli->ping();
?>

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proxy::ping(array (
  0 => NULL,
))
proxy::ping returns true

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  • mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections
  • mysqli_ping() - ping һ�����ӣ�����������Ӵ��ڶϿ�״̬����������
  • mysql_ping() - Ping һ�����������ӣ����û����������������