Create JSON response from Parsed XML PHP - php

Question

I am parsing thorugh a eBay API response. I want to deliver this back to a website cleaner and easier to parse with JavaScript. I successfuly Parsed through the XML... but now turning that into JSON to resend back to the client is giving me some headaches.
NOTE: $resp is the response from eBay. It's their full length XML that is successfully parsed with the code below.
For example... $valueName could be Grade. And then I go into the next foreach loop and get the values for this. These values may be 10, 9.5, 9 etc.
Here is my PHP code.
$arrayName = array();
$arrayValue = array();
foreach($resp->aspectHistogramContainer->aspect as $name) {
$nameAspect = $name['name'];
//$arrayName["aspectName"] = $nameAspect;
foreach($name->valueHistogram as $value) {
$valueAspect = $value['valueName'];
//$arrayValue["aspectValue"] = $valueAspect;
}
//array_push($arrayName, $arrayValue);
}
echo json_encode($arrayName);
So, without me trying to create my own JSON, I am getting that I need. I echos results and it was similar to this...
NAME
----- Value
----- Value
----- Value
NAME
----- Value
NAME
etc etc
For a JSON response... Im looking for something like...
[
{
"name": "NAME",
"value": ["value", "value"]
}, {
"name": "name",
"value": ["value", "value"]
}
]
Any help and guidance would be greatly appreciated.
eBay's response is like this (there are A LOT more <aspect> and <valueHistogram>)
<getHistogramsResponse xmlns="http://www.ebay.com/marketplace/search/v1/services">
<ack>Success</ack>
<version>1.13.0</version>
<timestamp>2018-11-07T15:32:20.380Z</timestamp>
<aspectHistogramContainer>
<domainDisplayName>Baseball Cards</domainDisplayName>
<aspect name="Card Manufacturer">
<valueHistogram valueName="Ace Authentic">
<count>19</count>
</valueHistogram>
<valueHistogram valueName="American Caramel">
<count>2024</count>
</valueHistogram>
<valueHistogram valueName="APBA">
<count>10554</count>
</valueHistogram>
<valueHistogram valueName="Bazooka">
<count>8826</count>
</valueHistogram>
<valueHistogram valueName="Be A Player">
<count>17</count>
</valueHistogram>
<valueHistogram valueName="Bell Brand Dodgers">
<count>334</count>

Answer 1

To encode it (and assuming SimpleXML), then it's just a case of building each internal $aspect data array and then adding the values to it. I use (string) to ensure the data is not stored as a SimpleXMLElement, which can cause side effects...
$arrayName = array();
foreach($resp->aspectHistogramContainer->aspect as $name) {
$aspect = [ "name" => (string)$name['name']];
foreach($name->valueHistogram as $value) {
$aspect["value"][] = (string)$value['valueName'];
}
$arrayName[] = $aspect;
}
echo json_encode($arrayName);
with the sample XML, this gives...
[{"name":"Card Manufacturer","value":["Ace Authentic","American Caramel","APBA","Bazooka","Be A Player","Bell Brand Dodgers"]}]

Answer 2

Create one single array $resultArray and store values in it. By maintaining your current code structure with minimal changes, here is the updated code snippet,
$resultArray = array();
$i = 0; // Maintain Array Index value
foreach($resp->aspectHistogramContainer->aspect as $name) {
$resultArray[$i]["aspectName"] = (string)$name['name'];;
foreach($name->valueHistogram as $value) {
$resultArray[$i]["aspectValue"][] = (string)$value['valueName'];
}
$i++; // Increment array index to store next value
}
echo json_encode($resultArray);

Answer 3

$results = array();
// Parse the XML into a keyed array
foreach($resp->aspectHistogramContainer->aspect as $name) {
$nameAspect = (string) $name['name'];
$values = array();
foreach($name->valueHistogram as $value) {
$values[] = (string) $value['valueName'];
}
$results[$nameAspect] = $values;
}
// This keeps things simple - rewrite to the required JSON format
$outputForJSON = array();
foreach ($results as $name => $values) {
$outputForJSON[] = array(
"name" => $name,
"values" => $values
);
}
echo json_encode($outputForJSON);