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>
2 answers
solution1
1 ACCPTED 2016-11-23 02:40:34
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.
solution2
0 2016-11-23 20:23:33
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
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