Question

I think I’ve found where the error lies:

    $convertJSON = file_get_contents("http://www.google.com/ig/calculator?hl=en&q=" . $currencyValue . $currencySelectValue . "%3D%3FUSD", true);
    var_dump($convertJSON);
    $convertArr = json_decode($convertJSON, true);
    var_dump($convertArr);

I do that to debug, and I get this result (I entered 555 and Euros):

string(68) "{lhs: "555 Euros",rhs: "796.64700 U.S. dollars",error: "",icc: true}"
NULL

So it seems that the PHP function to decode the JSON object is doing something wrong somewhere. Any help?

Answer 1

The response Google is giving you isn’t valid JSON because the labels are not quoted. You’ll have to parse it yourself.

$response = '{lhs: "555 Euros",rhs: "796.64700 U.S. dollars",error: "",icc: true';
preg_match('/rhs:\s*"([^"]+)"/', $response, $m);
echo $m[1];

Output:

796.64700 U.S. dollars