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WordPress How to Build a WordPress Plugin Connecting WordPress Plugins with 3rd Party APIs Parsing JSON with PHP: Part 1

Chris Andruszko
Chris Andruszko
18,392 Points
Posted by Chris Andruszko
Chris Andruszko
18,392 Points

JSON index has changed?

This is less of a question and more of something I noticed. I thought I'd post it in case anyone else has this problem.

This is the code Zac wrote in this video:

<?php echo $wptreehouse_profile->{'badges'}[$i]->{'courses'}[2]->{'title'}; ?>

We're accessing the third item inside the "courses" array which displayed the course titles just fine in the video (around the 9 minute mark). But maybe something has changed to the JSON file because this wasn't working for me. I inspected the JSON and found that accessing the second item in the "courses" array properly displayed the course titles:

<?php echo $wptreehouse_profile->{'badges'}[$i]->{'courses'}[1]->{'title'}; ?>

In this case, to display the project name, I have to access the "courses" array's first item:

<?php echo $wptreehouse_profile->{'badges'}[$i]->{'courses'}[0]->{'title'}; ?>
Patrizia Lutz
Patrizia Lutz
1,449 Points
Patrizia Lutz
Patrizia Lutz
1,449 Points

It seems that the JSON file structure has changed. There are now only 2 elements in the badges array.

It also looks like the badge->name and badge->url are the same as badge->courses[1]->name and badge->courses[1]->name.

stdClass Object
(
    [name] => The Name
    [profile_name] => misfist
    [profile_url] => http://teamtreehouse.com/misfist
    [gravatar_url] => https://uploads.teamtreehouse.com/production/profile-photos/3728252/thumb_my_censored_icon_red.png
    [gravatar_hash] => 55bdd3fc07d591629dda7496520628a3
    [badges] => Array
        (
            [0] => stdClass Object
                (
                    [id] => 49
                    [name] => Newbie
                    [url] => http://teamtreehouse.com/misfist
                    [icon_url] => https://achievement-images.teamtreehouse.com/Generic_Newbie.png
                    [earned_date] => 2015-06-12T17:18:50.000Z
                    [courses] => Array
                        (
                        )

                )

            [1] => stdClass Object
                (
                    [id] => 2122
                    [name] => Introducing JavaScript
                    [url] => http://teamtreehouse.com/library/javascript-basics/introducing-javascript
                    [icon_url] => https://achievement-images.teamtreehouse.com/badges_JavaScript_Basics_Stage1.png
                    [earned_date] => 2015-06-12T18:04:58.000Z
                    [courses] => Array
                        (
                            [0] => stdClass Object
                                (
                                    [title] => JavaScript Basics
                                    [url] => http://teamtreehouse.com/library/javascript-basics
                                    [badge_count] => 1
                                )

                            [1] => stdClass Object
                                (
                                    [title] => Introducing JavaScript
                                    [url] => http://teamtreehouse.com/library/javascript-basics/introducing-javascript
                                    [badge_count] => 1
                                )

                        )

                )

        )

    [points] => stdClass Object
        (
            [total] => 955
            [HTML] => 0
            [CSS] => 0
            [Design] => 0
            [JavaScript] => 685
            [Ruby] => 0
            [PHP] => 24
            [WordPress] => 215
            [iOS] => 0
            [Android] => 0
            [Development Tools] => 0
            [Business] => 0
            [Python] => 0
            [Java] => 0
            [Digital Literacy] => 0
        )

)

What I'm using is:

<?php foreach ($wptreehouse_profile->badges as $badge) { ?>
<li>
    <ul>
        <li>
            <img class="wptreehouse-gravatar" width="120px" src="<?php echo $badge->icon_url; ?>">
        </li>
        <li class="wptreehouse-badge-name">
            <a href="<?php echo $badge->url; ?>"><?php echo $badge->{'name'}; ?></a>
        </li>
        <li class="wptreehouse-project-name">
            <a href="<?php echo $badge->{'courses'}[0]->{'url'}; ?>"><?php echo $badge->{'courses'}[0]->{'title'}; ?></a>
        </li>
    </ul>
</li>
<?php }?>

1 Answer

Andrea R
Andrea R
10,520 Points
Andrea R
Andrea R
10,520 Points

I noticed this too and took a slightly different approach

<ul class="wptreehouse-badges">
    <?php for( $i = 0; $i < 20; $i++ ): ?>
    <li>
        <ul>
            <li>
                <img width="120px" src="<?php echo $wptreehouse_profile->{'badges'}[$i]->{'icon_url'};?>">
            </li>
            <li class="wptreehouse-badge-name">
                <a href="<?php echo $wptreehouse_profile->{'badges'}[$i]->{'url'};?>"><?php echo $wptreehouse_profile->{'badges'}[$i]->{'name'};?></a>
            </li>
            <?php if(!empty($wptreehouse_profile->{'badges'}[$i]->{'courses'})): ?>
            <li class="wptreehouse-project-name">
                <a href="<?php echo $wptreehouse_profile->{'badges'}[$i]->{'courses'}[0]->{'url'};?>">
                    <?php echo $wptreehouse_profile->{'badges'}[$i]->{'courses'}[0]->{'title'};?>
                </a>
            </li>
        <?php endif; ?>
        </ul>
    </li>
    <?php endfor; ?>

</ul>