Questions & Answers

URL: https://clinicaltrials.gov/api/query/full_studies?expr=heart+attack&fields=NCTId,BriefTitle,BriefSummary,CollaboratorName&fmt=json

Trying to get the NCTId, BriefTitle, BriefSummary and OverallStatus parameters to be displayed on a page. But I am having a hard time just getting the parameters.

I am new to JSON, so any help appreciated.

I tried this to see if the BriefTitle would display:

$url='https://clinicaltrials.gov/api/query/field_values?expr=heart+attack&field=BriefTitle&fmt=json'; 


$JSON = file_get_contents($url);
$response_json_data = new RecursiveIteratorIterator(
    new RecursiveArrayIterator(json_decode($JSON, TRUE)),
    RecursiveIteratorIterator::SELF_FIRST);

foreach ($response_json_data as $key => $val) {
    if(!is_array($val)) {
        if($key == "BriefTitle") {
            print "<br/>";
        }
    print $key."    : ".$val . "<br/>";
    }
}