Convert json to csv using php - php

Question

Hello i have small problem with converting json to csv.
Here is my code:
$jsonString = '{"cod":"200","calctime":0.3107,"cnt":15,"list":[{"id":2208791,"name":"Yafran","coord":{"lon":12.52859,"lat":32.06329},"main":{"temp":9.68,"temp_min":9.681,"temp_max":9.681,"pressure":961.02,"sea_level":1036.82,"grnd_level":961.02,"humidity":85},"dt":1485784982,"wind":{"speed":3.96,"deg":356.5},"rain":{"3h":0.255},"clouds":{"all":88},"weather":[{"id":500,"main":"Rain","description":"light rain","icon":"10d"}]}]}';
//Decode the JSON and convert it into an associative array.
$jsonDecoded = json_decode($jsonString, true);
//Give our CSV file a name.
$csvFileName = 'file.csv';
//Open file pointer.
$fp = fopen($csvFileName, 'w');
//Loop through the associative array.
foreach($jsonDecoded as $row){
//Write the row to the CSV file.
fputcsv($fp, $row);
}
//Finally, close the file pointer.
fclose($fp);
?>
I have tried with another json format like this [{"name":"Wayne","age":28},{"name":"John","age":21},{"name":"Sara","age":24}] and its working perfect.
How to modify my code to save it correctly in csv format.
Pictures:
Now it save it like this:
I need to save it like this:
Can someone help me ?

Answer 1

Hope this will work..
<?php
$jsonString = '{"cod":"200","calctime":0.3107,"cnt":15,"list":[{"id":2208791,"name":"Yafran","coord":{"lon":12.52859,"lat":32.06329},"main":{"temp":9.68,"temp_min":9.681,"temp_max":9.681,"pressure":961.02,"sea_level":1036.82,"grnd_level":961.02,"humidity":85},"dt":1485784982,"wind":{"speed":3.96,"deg":356.5},"rain":{"3h":0.255},"clouds":{"all":88},"weather":[{"id":500,"main":"Rain","description":"light rain","icon":"10d"}]}]}';
$jsonDecoded = json_decode($jsonString, true);
$csvHeader=array();
$csvData=array();
jsontocsv($jsonDecoded);
print_r($csvHeader);
print_r($csvData);
$csvFileName = 'file.csv';
$fp = fopen($csvFileName, 'w');
fputcsv($fp, $csvHeader);
fputcsv($fp, $csvData);
fclose($fp);
function jsontocsv($data)
{
global $csvData,$csvHeader;
foreach($data as $key => $value)
{
if(!is_array($value))
{
$csvData[]=$value;
$csvHeader[]=$key;
}
else
{
jsontocsv($value);
}
}
}
Json 2
<?php
$jsonString =file_get_contents("http://samples.openweathermap.org/data/2.5/box/city?bbox=12,32,15,37,10&appid=b1b15e88fa797225412429c1c50c122a1");;
$jsonDecoded = json_decode($jsonString, true);
$csvHeader=array();
$csvData=array();
$csvFileName = 'file.csv';
$fp = fopen($csvFileName, 'w');
$counter=0;
foreach($jsonDecoded["list"] as $key => $value)
{
jsontocsv($value);
if($counter==0)
{
fputcsv($fp, $csvHeader);
$counter++;
}
fputcsv($fp, $csvData);
$csvData=array();
}
fclose($fp);
function jsontocsv($data)
{
global $csvData,$csvHeader;
foreach($data as $key => $value)
{
if(!is_array($value))
{
$csvData[]=$value;
$csvHeader[]=$key;
}
else
{
jsontocsv($value);
}
}
}

Answer 2

try this:
$rowNr = 0;
$prevKey = "";
$target = [];
$iterator = new RecursiveArrayIterator($jsonDecoded['list'][$rowNr]);
iterator_apply($iterator, 'traverseStructure', array($iterator,$prevKey,&$target));
function traverseStructure($iterator, $prevKey, &$target) {
while ( $iterator -> valid() ) {
if ( $iterator -> hasChildren() ) {
$prevKey = $iterator->key();
traverseStructure($iterator -> getChildren(), $prevKey, $target);
}
else {
if(isset($prevKey) && !is_int($prevKey)){
$row1 = $prevKey."/".$iterator->key();
}else{
$row1 = $iterator->key();
}
$row2 = $iterator->current();
$target[$row1] = $row2;
}
$iterator -> next();
}
}
fputcsv($fp, array_keys($target));
fputcsv($fp, array_values($target));