last.fm api - random / shuffle foreach loop

Question

I am currently working with the lat.fm api to develop an app.

I have a function which runs to pull in the weekly track listing from a last.fm group.

The aim is to pull in the album artwork and to make a "gridview" template.

The below code does this:

public function getWeeklyTrackChartGrid($methodVars) {
        // Check for required variables
        if ( !empty($methodVars['group']) ) {
            $vars = array(
                'method' => 'group.getweeklytrackchart',
                'api_key' => $this->auth->apiKey
            );
            $vars = array_merge($vars, $methodVars);

            if ( $call = $this->apiGetCall($vars) ) {
                $i = 0;


                //shuffle($call->weeklytrackchart->track);

                $loopN = $call->weeklytrackchart->track;


                foreach ($loopN as $track ) {

                    require 'config.php';
                     //if(++$i > $userLimit*2) break;


                     $albumArtS = $tracks['album']['image']['small'] = (string) $track->image[0];
                     $albumArtM = $tracks['album']['image']['small'] = (string) $track->image[1];
                     $albumArtL = $tracks['album']['image']['small'] = (string) $track->image[2];

                     $playCounts = $tracks[$i]['playcount'] = (string) $track->playcount; 

                     ?>


                       <?php if ($playCounts > 1)  { ?>

                       <?php if ($albumArtL)  { ?>

                            <img src="<?php echo $albumArtL; ?>" />

                            <?php } ?>

                       <?php } else { ?>

                       <?php if ($albumArtM)  { ?> 

                            <img src="<?php echo $albumArtM; ?>" />

                            <?php } ?>

                       <?php } ?>



                     <?php if ($albumArtwork == "yes")  { ?>


                        <?php if ($albumArt)  { ?>




                        <?php } }?>



                <?php   $i++;
                }
                return $tracks;
            }
            else {
                return FALSE;
            }
        }
        else {
            // Give a 91 error if incorrect variables are used
            $this->handleError(91, 'You must include a group variable in the call for this method');
            return FALSE;
        }
    }

I would like to use the php function shuffle on the foreach loop to randomise the tracks, rather than pull them in, in the order last.fm gives them you.

As you can see i havent commented the shuffle function out above, as when i add this i get the following warning:

Warning: shuffle() expects parameter 1 to be array, object given in

Any ideas on what could be the problem?

Cheers, Dan

蒋艾伦 · Answer 1 · 2013-06-19T00:48:21.337

0

$loopN = (array) $call->weeklytrackchart->track;
shuffle($loopN);

edited Jun 19 '13 at 00:48

answered Jun 18 '13 at 09:23

蒋艾伦

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is that to replace the $loopN var? – danyo Jun 18 '13 at 09:27
Yes, the parameter in shuffle() has to be array, it wont work if you put an object $call->weeklytrackchart->track in it. Just simply convert object to array using (array). – 蒋艾伦 Jun 19 '13 at 00:48
i have tried this, but it doesn't seem to output anything at all? – danyo Jun 19 '13 at 12:07
can you check the value of $loopN by 'var_dump($loopN)'? – 蒋艾伦 Jun 19 '13 at 14:39

last.fm api - random / shuffle foreach loop

1 Answers1