Aerospike::__construct - constructs a new Aerospike object
public int Aerospike::__construct ( array $config [, boolean $persistent_connection = true [, array $options]] )
Aerospike::__construct() will create an Aerospike object and connect to the cluster defined in config. The Aerospike::isConnected() method can be used to test whether the connection succeeded. If a config or connection error occured the Aerospike::error() and Aerospike::errorno() methods can be used to inspect it.
The Aerospike class instance should use persistent connections. This allows for reduced overhead on initializing the cluster and keeping track of the state of its nodes. Subsequent instantiation calls will attempt to reuse the connection.
config an associative array holding the cluster connection information. One node or more (for failover) may be defined. Once a connection is established to a node of the Aerospike DB the client will retrieve the full list of nodes in the cluster and manage its connections to them.
- hosts an array of host data
- addr hostname or IP of the node
- port
- user
- pass
persistent_connection whether the C-client will persist between requests.
options: set one or more of the following OPT_* constants OPT_CONNECT_TIMEOUT, OPT_READ_TIMEOUT, OPT_WRITE_TIMEOUT as default values.
The following only apply to instances created with non-persistent connections:
<?php
$config = array("hosts"=>array(array("addr"=>"localhost", "port"=>3000)));
$opts = array(Aerospike::OPT_CONNECT_TIMEOUT => 1250, Aerospike::OPT_WRITE_TIMEOUT => 1500);
$db = new Aerospike($config, true, $opts);
if (!$db->isConnected()) {
echo "Aerospike failed to connect[{$db->errorno()}]: {$db->error()}\n";
exit(1);
}
?>On error we expect to see:
Aerospike failed to connect[300]: failed to initialize cluster