How to connect to the server correctly?

PHP SDK
1

Hey.

I installed a new Couchbase server 5.
On another server, I installed the PHP 7 and cli v2.3.4.
Now when I try to write data, I get an error.
If I do this:

$bucketName = "logs";
$cluster = new CouchbaseCluster("couchbase://192.168.0.51");
$authenticator5 = new \Couchbase\ClassicAuthenticator();
$authenticator5->bucket('Administrator', 'Pass');
$cluster->authenticate($authenticator5);
$bucket = $cluster->openBucket($bucketName);
// Store a document
echo "Storing 0:king_arthur\n";
$result = $bucket->upsert('0:king_arthur', array(
    "email" => "kingarthur@couchbase.com",
    "interests" => array("African Swallows")
));
var_dump($result);

Error:

Fatal error: Uncaught Couchbase\Exception: LCB_AUTH_ERROR: Authentication failed. You may have provided an invalid username/password combination in /var/www/html/system/test/cb5test1.php:20 Stack trace: #0 /var/www/html/system/test/cb5test1.php(20): Couchbase\Cluster->openBucket('logs') #1 {main} thrown in /var/www/html/system/test/cb5test1.php on line 20

How to connect to the server correctly?

I read https://developer.couchbase.com/documentation/server/current/sdk/php/managing-connections.html

Now i do:

$bucketName = "logs";
$clusterLogs5 = "couchbase://192.168.0.51";
$authenticator = new \Couchbase\PasswordAuthenticator();
$authenticator->username('Administrator')->password('Pass');
$cluster = new CouchbaseCluster($clusterLogs5);

$cluster->authenticate($authenticator);
$bucket = $cluster->openBucket($bucketName);

Thank you.

2

That’s correct. PasswordAuthenticator is what you should use. Also there is a shortcut, which will create PasswordAuthenticator instance internally:

$cluster = new CouchbaseCluster($clusterLogs5);
$cluster->authenticate('Administrator', 'Pass');
3

Hello Sergey @avsej .

When using this code:

        $cluster = new CouchbaseCluster($clusterLogs5);
        $cluster->authenticate('Administrator', 'Pass');
        return $cluster->openBucket("bucketName");

I get an error:

Warning: Couchbase\Cluster::authenticate() expects exactly 1 parameter, 2 given in /var/www/...  on line ..
Fatal error: Uncaught Couchbase\Exception: LCB_AUTH_ERROR: Authentication failed. You may have provided an invalid username/password combination

What am I doing wrong?

Thank you.

4

That’s strange. Are you sure, you loading correct extension? The feature has been added in 2.3.3, and I’ve just verified it with fresh deployment.

5

phpinfo()

couchbase
couchbase support 	enabled
extension version 	2.3.4
libcouchbase runtime version 	2.7.7 (git: 269fae2e8f40d01650b1700af375bd111b54a358)
libcouchbase headers version 	2.7.7 (git: 269fae2e8f40d01650b1700af375bd111b54a358)
igbinary transcoder 	disabled (install pecl/igbinary and rebuild pecl/couchbase)
zlib compressor 	enabled

Couchbase 5

6

Sorry, it should be authenticateAs()

$cluster->authenticateAs('Administrator', 'Pass');
7

Thanks Sergey, this really works.
But which method is preferable?
Which method is more modern?

8

authenticateAs() is a shortcut. and there no really difference if you use PasswordAuthenticator. Maybe in some cases you want to create authenticator before cluster object, and feed it to multiple instances.

9

Thanks @avsej again!