Returning a JSON result from a PHP REST web service
21,583
Solution 1
You can format your result in Array or Object and then Just echo it with the json headers. i.e
$result_json = array('name' => 'test', 'age' => '16');
// headers for not caching the results
header('Cache-Control: no-cache, must-revalidate');
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
// headers to tell that result is JSON
header('Content-type: application/json');
// send the result now
echo json_encode($result_json);
Hope this helps, Thanks
Solution 2
To get json result from php you should use
echo json_encode($result_json)
but echo does not exit the program so after using echo it is better to exit program but for shorthand you can use
exit(json_encode($result_json));
Author by
Epicurus
Updated on June 15, 2020Comments
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Epicurus almost 4 years
I have a REST web service written in PHP and I'm calling it using a POST request (making use of curl for this). The web service should return a JSON document. Problem is, I'm not sure what is the correct way to send this document back to the web service client. Is it sufficient to just echo it out?
Right now it looks like this is the only way in which i can get the JSON document to appear in the result of the POST request (the $result variable):
$result = curl_exec($ch);
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Epicurus about 13 yearsThanx, adding those headers indeed solved the formatting problem I was having (my browser wouldn't recognize the file as valid a JSON document). I was also wondering if I could output XML as easily as JSON. However, I couldn't find an equivalent function to json_encode. Do you know if such a built-in function even exists?
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Hamman Samuel almost 4 yearsIf you're wanting indented formatting in the returned JSON, you can change the last line to
echo json_encode($result_json, JSON_PRETTY_PRINT);