SunshinePHP Developer Conference 2015

maxdb_ping

maxdb::ping

(PECL maxdb >= 1.0)

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

Descrição

Estilo procedural

bool maxdb_ping ( resource $link )

Estilo orientado à objeto

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.

Valor Retornado

Retorna TRUE em caso de sucesso ou FALSE em caso de falha.

Exemplos

Exemplo #1 Estilo orientado à objeto

<?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();
?>

Exemplo #2 Estilo procedural

<?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);
?>

O exemplo acima irá imprimir algo similar à:

Our connection is ok!
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