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Create JSON response from Parsed XML PHP – Ebay API

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>
Tags:

3

Answers


  1. 0 
    $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);
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  2. 0

    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"]}]
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  3. 0

    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);
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