fql multiquery error - facebook-graph-api

Question

i have written following code to learn how fql multiquery works:
include_once "fbmain.php";
try{
$your_id=xxxxxxxx;
$fql= '{
"friends":"SELECT uid2 FROM friend WHERE uid1='.$your_uid.',"
"friendinfo":"SELECT * FROM standard_user_info WHERE uid IN (SELECT uid2
FROM #friends)"
}';
$res = $facebook->api_client->fql_multiquery($fql);
}
catch(Exception $o){
d($o); // d() is function to print
}
but the output shows error
Call to a member function fql_multiquery() on a non-object on line 9
i have also tried other queries instead of these two , but the problem remains same. i am using php sdk 3.0.
help pls.

Answer 1

I do not use Multi Query, since fql has moved to the graph api. Instead i use batch request.
Here is a sample of a request of /feed, the comments of the 1st 10 results and fql multi of the permalink from the 1st 10 posts. I am sure this is a bit over kill for what you need but is the best example i have for mixing graph and fql and using name feature, which seems is what you need to carry friends.
https://developers.facebook.com/docs/reference/api/batch/
<?php
if($type=="home"){
$relURL = '/'.$pageid.'/'.$type.'?'.$access_token.'%26limit='.$limit.'%26return_ssl_resources=1%26fields=id,from,name,message,likes,comments,link,picture,caption,story,source,created_time,type,actions,application,object_id,description%26since='.$since.'%26until='.$until.'%26offset='.$offset.'';
}else{
$relURL = '/'.$pageid.'/'.$type.'?'.$app_access_token.'%26limit='.$limit.'%26return_ssl_resources=1%26fields=id,from,name,message,likes,comments,link,picture,caption,story,source,created_time,type,actions,application,object_id,description%26since='.$since.'%26until='.$until.'%26offset='.$offset.'';
}
$queryProfile = array(
array('method' => 'GET', 'relative_url' => '/'.$pageid.'?fields=id,name,link,picture%26'.$app_access_token.''),
array('method' => 'GET', 'relative_url' => ''.$relURL.'', 'name' => 'comments', 'omit_response_on_success' => false),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.0.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.1.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.2.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.3.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.4.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.5.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.6.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.7.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.8.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/{result=comments:$.data.9.id}/comments?fields=id,from,message,created_time%26limit=3%26offset=0'),
array('method' => 'GET', 'relative_url' => '/fql?q=SELECT+permalink+FROM+stream+WHERE+source_id=\''.$pageid.'\'+AND+post_id=\'{result=comments:$.data.0.id}\''),
array('method' => 'GET', 'relative_url' => '/fql?q=SELECT+permalink+FROM+stream+WHERE+source_id=\''.$pageid.'\'+AND+post_id=\'{result=comments:$.data.1.id}\''),
array('method' => 'GET', 'relative_url' => '/fql?q=SELECT+permalink+FROM+stream+WHERE+source_id=\''.$pageid.'\'+AND+post_id=\'{result=comments:$.data.2.id}\''),
array('method' => 'GET', 'relative_url' => '/fql?q=SELECT+permalink+FROM+stream+WHERE+source_id=\''.$pageid.'\'+AND+post_id=\'{result=comments:$.data.3.id}\''),
array('method' => 'GET', 'relative_url' => '/fql?q=SELECT+permalink+FROM+stream+WHERE+source_id=\''.$pageid.'\'+AND+post_id=\'{result=comments:$.data.4.id}\''),
array('method' => 'GET', 'relative_url' => '/fql?q=SELECT+permalink+FROM+stream+WHERE+source_id=\''.$pageid.'\'+AND+post_id=\'{result=comments:$.data.5.id}\''),
array('method' => 'GET', 'relative_url' => '/fql?q=SELECT+permalink+FROM+stream+WHERE+source_id=\''.$pageid.'\'+AND+post_id=\'{result=comments:$.data.6.id}\''),
array('method' => 'GET', 'relative_url' => '/fql?q=SELECT+permalink+FROM+stream+WHERE+source_id=\''.$pageid.'\'+AND+post_id=\'{result=comments:$.data.7.id}\''),
//array('method' => 'GET', 'relative_url' => '/'.$pageInfo[id].'/photos?fields=id,name%26limit=9')
);
$batchResponse = $facebook->api('?batch='.json_encode($queryProfile), 'POST');
$pageInfo = json_decode($batchResponse[0]['body'], true);
$pageType = $pageInfo[type];
$pageLink = $pageInfo[link];
$thispageid = $pageInfo[id];
$MEcomments = json_decode($batchResponse[1]['body'], true);
?>

Answer 2

Looks rather a problem with the instantiation of
$facebook->api_client
Worth to note also that in [standard_user_info] the column [uid] is of type string so you would probably also need to add quotes.
https://developers.facebook.com/docs/reference/fql/standard_user_info/
According to FB docs, FQL multiquery should be faster than subsequent batch calls.
https://developers.facebook.com/docs/reference/fql/