PHP LDAP Get User Attributes, Including Associated Groups

What is the best way to run a search on the current user to retrieve all attributes, including associated groups in Active Directory using LDAP / PHP?

For attributes, mainly just first name, last name, and display name.

For associated groups, just the groups the user is a member of, such as the memberOf function.

I've tried a few options, but can't seem to get the right filter / search combination and most examples cover retrieving lists of users where there's a known group.

I've tried running this after a successful bind:

$attributes = array("displayname");
$filter = "(&(sAMAccountName=$username))";
$result = ldap_search($ds, $ldapconfig['basedn'], $filter, $attributes);
$entries = ldap_get_entries($ds, $result);
if($entries["count"] > 0){
  echo "displayName: ".$entries[0]['displayname'][0]."<br/>";
 } else {
 echo("msg:'".ldap_error($ds)."'</br>");
 }

Which returns the following error: "No such object".

UPDATE:

This is the latest block I've tried and am able to get results when I print_r the $info variable, however the for clause is still erring out somewhere. I changed the basedn to just the dc attributes:

$filter="($SearchField=$SearchFor)";
$sr=ldap_search($ds, $basedn, $filter, $LDAPFieldsToFind);
$info = ldap_get_entries($ds, $sr);

if($info["count"] > 0) {
    for ($x=0; $x<$info["count"]; $x++) {
        $sam=$info[$x]['samaccountname'][0];
        $giv=$info[$x]['givenname'][0];
        $tel=$info[$x]['telephonenumber'][0];
        $email=$info[$x]['mail'][0];
        $nam=$info[$x]['cn'][0];
        $dir=$info[$x]['homedirectory'][0];
        $dir=strtolower($dir);
        $pos=strpos($dir,"home");
        $pos=$pos+5;
            if (stristr($sam, $SearchFor) && (strlen($dir) > 8)) {
              print "\nActive Directory says that:\n";
              print "CN is: ".$nam." \n";
              print "SA