Wordnik "Trying to get property of non-object" Error when trying getDefinitions

Question

I'm trying to use the Wordnik PHP API and I'm having some trouble. I tried to use the getDefinitions method but it returns an error: Notice: Trying to get property of non-object in C:\xampp\htdocs\index.php on line 18.

Here is the following code:

<!DOCTYPE html>
<html>
    <head>
    </head>
    <body>
        <form method="post">
            <input type="text" placeholder="First Word" name="word1">
            <input type="submit" placeholder="Compare">
        </form>
        <?php
            require('./wordnik/Swagger.php');
            $APIKey = '342eac9900e703079b0050d5f7008eab962195189e75bfbcb';
            $client = new APIClient($APIKey, 'http://api.wordnik.com/v4');

            $word1 = $_POST['word1'];
            $wordApi = new WordApi($client);
            $word1 = $wordApi->getDefinitions($word1, null, null);
            print $word1->text;
        ?>
    </body>
</html>

You can also have a look at: http://stackoverflow.com/a/12769983/2377164 — olibiaz, Nov 23 '16 at 02:54

olibiaz · Accepted Answer · 2016-11-23T02:53:00.577

I think your notice (not really an error in the php world) does not come from the $word1 = $wordApi->getDefinitions($word1, null, null); but from print $word1->text; is it possible?

If you check the WorldApi class :

https://github.com/wordnik/wordnik-php/blob/master/wordnik/WordApi.php#L182 https://github.com/wordnik/wordnik-php/blob/master/wordnik/WordApi.php#L138

You can see that getDefinitions(...) return an array of Definition or null.

One thing is sure, you cannot get the ->text property from $word1 but from one of these indexes if the return is valid. Try $word1[0]->text

Anyway you should also handle the case where the return of getDefinitions(...) return an empty array or null.

Thanks! I'm new to PHP so sorry for my incompetence. I'll try it later today. — Njinx, Nov 23 '16 at 13:14

score 0 · Answer 2 · answered Nov 23 '16 at 20:23

This sample code might help you:

apiUrl = 'http://api.wordnik.com/v4'
apiKey = 'YOURKEYHERE'
client = swagger.ApiClient(apiKey, apiUrl)
wordApi = WordApi.WordApi(client)
res = wordApi.getWord('cat')
res2 = wordApi.getDefinitions('cat')
assert res, 'null getWord result'
assert res.word == 'cat', 'word should be "cat"'
print res.word
print dir(res2[0])
print res2[0].partOfSpeech

Wordnik "Trying to get property of non-object" Error when trying getDefinitions

2 Answers2