Net_MAC::__construct()
Synopsis
Net_MAC::__construct (
object $db
, array $options
)
Описание
This is the constructor that will create and populate a valid Net_MAC object.
Parameter
-
object
$db- This parameter must be a valid MDB2 object. -
array
$options- An array of options to use with the database in retrieving MAC address vendors. The associative array should have key/value pairs as follows:Net_MAC::__construct() options Option Описание tablename The name of the table where MAC address vendor information lives macaddrcol The name of the column containing the MAC address prefixes vendorcol The name of the column containing the vendor name desccol The name of the column containing any extra descriptive information derived from the vendor list
Return value
void - No return value. A Net_MAC_Exception Exception object will be thrown if there is an error during construction
Замечание
The constructor can throw exceptions on error, so the constructor should always be called from inside a try/catch block.
Пример
Instantiating a Net_MAC object
<?php
require_once 'Net/MAC.php';
require_once 'MDB2.php';
$db_type = 'pgsql';
$db_host = 'localhost';
$db_user = 'username';
$db_name = 'dbname';
$db_pass = 'password';
$dsn = "$db_type://$db_user:$db_pass@$db_host/$db_name";
$dbh =& MDB2::factory($dsn);
if (MDB2::isError($dbh)) {
echo "MDB2 Error: ".$dbh->getUserInfo();
}
$dboptions = array('tablename' => 'macvendors',
'macaddrcol' => 'macaddr',
'vendorcol' => 'vendor',
'desccol' => 'description');
try {
$nmh =& new Net_MAC($dbh, $dboptions);
} catch (Net_MAC_Exception $e) {
echo 'Net_MAC Error: ' . $e->getMessage();
exit;
}
?>
Throws
throws Net_MAC_Exception