* where callback method must follow the signature:
* public function string aerodb_deserialize ( mixed $value )
*----------------------------------------------------------------------------------------------------------------------------
*/
/*
* EXAMPLE 1: SET LOG LEVEL AND LOG HANDLER CALLBACK
*/
$config = array("hosts" => array(array("addr" => $HOST_ADDR, "port" => $HOST_PORT)));
$db = new Aerospike($config, 'prod-db');
if (!$db->isConnected()) {
echo "Aerospike failed to connect to host {$HOST_ADDR}:{$HOST_PORT} [{$db->errorno()}]: {$db->error()}\n";
$db->close();
exit(1);
} else {
echo "Aerospike connection to host {$HOST_ADDR}:{$HOST_PORT} successful\n";
$db->setLogLevel(Aerospike::LOG_LEVEL_DEBUG);
$db->setLogHandler(function ($level, $file, $function, $line) {
switch ($level) {
case Aerospike::LOG_LEVEL_ERROR:
$lvl_str = 'ERROR';
break;
case Aerospike::LOG_LEVEL_WARN:
$lvl_str = 'WARN';
break;
case Aerospike::LOG_LEVEL_INFO:
$lvl_str = 'INFO';
break;
case Aerospike::LOG_LEVEL_DEBUG:
$lvl_str = 'DEBUG';
break;
case Aerospike::LOG_LEVEL_TRACE:
