Call to a member function connect() on null

[porchys]

Call to a member function connect() on null

[porchys]

public function connect()
{

    // Select a random domain controller
    $domainController = $this->domainControllers[array_rand($this->domainControllers)];
       
    // Get the LDAP port
    $port = $this->getPort(); 
    // Create the LDAP connection
     
    $this->ldapConnection->connect($domainController, $port);
    // Set the LDAP options
     
    $this->ldapConnection->setOption(LDAP_OPT_PROTOCOL_VERSION, 3);
    $this->ldapConnection->setOption(LDAP_OPT_REFERRALS, $this->followReferrals);
    // Authenticate to the server
    
    return $this->authenticate($this->getAdminUsername(), $this->getAdminPassword(), true);
}

[porchys]

error is for this code $this->ldapConnection->connect($domainController, $port);

[porchys]

can you help me get out of this error.

[porchys]

above code is of file Adldap.php