Write json object into CSV file using php

Question

I'm trying to write the json object into a CSV file, but it's not working the file is empty.

any advice?

below my PHP code

//json to csv
$jsondata = '{"regNo":"92-212-98","tradName":"FEVADOL EXTRA TAB.","genericName":"PARACETAMOL, CAFFEINE","price":"5.300","strngth":"500, 65 mg","exD":"21/07","PRODREGSTATUS":"PRODNOTFOUND","authstatus":"1","marketingstatus":"1","productstatus":null}';
$json = json_decode($jsondata);

$fp = fopen('file.csv', 'w');

// if($fp == false){
// echo 'false open';
// }else{
//  echo 'true open';
// }

foreach ($json as $fields) {
    fputcsv($fp, $fields);
}

fclose($fp);

Answer 1

The second argument of fputcsv function must be an array that shows cells of a row. More information: https://www.php.net/manual/en/function.fputcsv.php

The problem will solve if you change the for part of code as following:

foreach ($json as $index => $field) {
    fputcsv($fp, [$index, $field]);
}