Proper use of ldap_connect in conditional statement

[SFDonovan]

I am authenticating using LDAP.

The function ldap_auth sends them to ldap_connect_ex to make the connection to ldap.

If I have multiple ldap servers then what would be the proper way to test for each.

This is the way it is written with just one ldap_host.

function ldap_connect_ex() {
	global $CBT_config;

$connection  = ldap_connect($CBT_config['ldap_host'], $CBT_config['ldap_port']);
ldap_set_option($connection, LDAP_OPT_PROTOCOL_VERSION, 3);

return $connection;
}

If I also have ldap_host2 then what is the proper way to code this. I believe the return of $connection is boolean.

Would the following work or is there a better way?

$connection  = ldap_connect($CBT_config['ldap_host'], $CBT_config['ldap_port']);
	if ($connection == false) {
	$connection  = ldap_connect($CBT_config['ldap_host2'], $CBT_config['ldap_port']);
	}

or..

$connection  = ((ldap_connect($CBT_config['ldap_host'])) || (ldap_connect($CBT_config['ldap_host2'])));	

If ldap_host is an actual url such as ldap://authldap1.xxxxx.com i have read that I don't need to include the ldap_port.

[scrupul0us]

try
{
     ldap_connect($CBT_config['ldap_host']);
}
catch
{
     ldap_connect($CBT_config['ldap_host2']);
}

[Weedpacket]

scrupul0us wrote:

try...catch...

...Except that ldap_connect() doesn't throw exceptions.

SFDonovan wrote:

If I also have ldap_host2 then what is the proper way to code this. I believe the return of $connection is boolean.

According to the manual, it's a resource representing the connection.

$ldap_hosts = array('ldap_host1', 'ldap_host2', ...);
$connection = null;
foreach($ldap_hosts as $host)
{
    $connection = ldap_connect(ldap_connect($host, $CBT_config['ldap_port']));
    if($connection) break;
}
if(!$connected) { /* trouble */ }