How to display PHP cURL response objects from string?

cereal 1,524 Nearly a Senior Poster Featured Poster · 2017-08-06T09:56:40+00:00

Hi,

that's a JSONP response, so in order to process this through PHP you need to remove the callback function that wraps the JSON data, for example:

callback({JSON DATA});

At this point you can remove it from the string:

<?php

$jsonp = 'callback({"name": "micheal"});';
$callb = 'callback'; // to remove

$s = substr($jsonp, mb_strlen($callb) + 1); // +1 to include the opening `(`
$s = substr($s, 0, -2); // -2 to remove `);`

print_r(json_decode($s, true));

Now, most JSON servers allows the client to define a callback in the requesting link:

http://url/page.php?callback=foo

So you receive:

foo({JSON DATA});

This allows you to write a more robust solution, as it's should not affect your script if they change their default callback function. See also if the server allows to get other formats, like simple JSON or XML.

michael.dewitt.716 15 Newbie Poster · 2017-08-07T01:28:02+00:00

Thanks cereal, once you said that it was jsonp, i was able to refine my search. In the end, i came across this function that seem to work really well:

function jsonp_decode($jsonp, $assoc = false) { // PHP 5.3 adds depth as third parameter to json_decode
    if($jsonp[0] !== '[' && $jsonp[0] !== '{') { // we have JSONP
       $jsonp = substr($jsonp, strpos($jsonp, '('));
    }
    return json_decode(trim($jsonp,'();'), $assoc);
}

print_r(jsonp_decode($res, true));

This was a featured post when i donated, but i dont know why its not showing as one. Thanks again for all your help and pointing me in the right direction.