Extract some JSON contained in an XML in PHP - php

Question

I'm trying to extract some JSON contained in of my XML file and then retrieve the values.
My XML is :
<Vehicle xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://regcheck.org.uk">
<vehicleJson>{
"Description": "RENAULT SCÉNIC III",
"RegistrationYear": "2016",
"CarMake": {
"CurrentTextValue": "RENAULT"
},
"CarModel": {
"CurrentTextValue": "SCÉNIC III"
},
"EngineSize": {
"CurrentTextValue": "5"
},
"FuelType": {
"CurrentTextValue": "DIESEL"
},
"MakeDescription": {
"CurrentTextValue": "RENAULT"
},
"ModelDescription": {
"CurrentTextValue": "SCÉNIC III"
},
"Immobiliser": {
"CurrentTextValue": ""
},
"IndicativeValue": {
"CurrentTextValue": 0
},
"DriverSide": {
"CurrentTextValue": ""
},
"BodyStyle": {
"CurrentTextValue": "MONOSPACE COMPACT"
},
"RegistrationDate": "2016-06-24",
"ImageUrl": "http://immatriculationapi.com/image.aspx/#UkVOQVVMVCBTQ8OJTklDIElJSQ==",
"ExtendedData": {
"anneeSortie": "2016",
"boiteDeVitesse": "",
"carburantVersion": "D",
"carrosserieVersion": "",
"classeSra": "",
"libVersion": "1.5 dCi 1461cm3 110cv ",
"libelleModele": "SCÉNIC III",
"marque": "RE",
"modele": "",
"produit": "",
"puissance": "5",
"version": "",
"cleCarrosserie": "",
"groupeSra": "",
"nbPlace": "5",
"datePremiereMiseCirculation": "24062016",
"questionBatterie": "",
"electrique": "",
"genre": "",
"typeVehicule": "",
"numSerieMoteur": "VF1JZ890H55864144",
"valeurANeufSRA": "",
"niveauRisqueVol": "",
"protectionConstructeur": "",
"puissanceDyn": "110",
"segmentVeh": "",
"KtypeId": "5853",
"EngineCC": "1461",
"Co2": "105",
"Cylinders": "4",
"CNIT": "M10RENVP472E768"
}
}</vehicleJson>
<vehicleData>
<Description>RENAULT SCÉNIC III</Description>
<RegistrationYear>2016</RegistrationYear>
<CarMake>
<CurrentTextValue>RENAULT</CurrentTextValue>
</CarMake>
<CarModel>SCÉNIC III</CarModel>
<BodyStyle>
<CurrentTextValue>MONOSPACE COMPACT</CurrentTextValue>
</BodyStyle>
<EngineSize>
<CurrentTextValue>5</CurrentTextValue>
</EngineSize>
<NumberOfDoors>
<CurrentValue>5</CurrentValue>
</NumberOfDoors>
<Transmission>
<CurrentValue />
</Transmission>
<FuelType>
<CurrentTextValue>DIESEL</CurrentTextValue>
</FuelType>
<Immobiliser>
<CurrentTextValue />
</Immobiliser>
<NumberOfSeats>
<CurrentValue>5</CurrentValue>
</NumberOfSeats>
</vehicleData>
</Vehicle>
Step 1: I'm looking to retrieve the Description and some values ​​contained in ExtendedData :
$xml = simplexml_load_string($my_xml) or die("Error: Cannot create object");
$infos_plaque = json_encode($xml->vehicleJson); // The attribute where the JSON is stored
$array = json_decode($infos_plaque);
echo "<pre>";
print_r($array);
echo "</pre>";
This $array return :
stdClass Object
(
[0] => {
"Description": "RENAULT SCÉNIC III",
"RegistrationYear": "2016",
"CarMake": {
"CurrentTextValue": "RENAULT"
},
"CarModel": {
"CurrentTextValue": "SCÉNIC III"
},
"EngineSize": {
"CurrentTextValue": "5"
},
"FuelType": {
"CurrentTextValue": "DIESEL"
},
"MakeDescription": {
"CurrentTextValue": "RENAULT"
},
"ModelDescription": {
"CurrentTextValue": "SCÉNIC III"
},
"Immobiliser": {
"CurrentTextValue": ""
},
"IndicativeValue": {
"CurrentTextValue": 0
},
"DriverSide": {
"CurrentTextValue": ""
},
"BodyStyle": {
"CurrentTextValue": "MONOSPACE COMPACT"
},
"RegistrationDate": "2016-06-24",
"ImageUrl": "http://immatriculationapi.com/image.aspx/#UkVOQVVMVCBTQ8OJTklDIElJSQ==",
"ExtendedData": {
"anneeSortie": "2016",
"boiteDeVitesse": "",
"carburantVersion": "D",
"carrosserieVersion": "",
"classeSra": "",
"libVersion": "1.5 dCi 1461cm3 110cv ",
"libelleModele": "SCÉNIC III",
"marque": "RE",
"modele": "",
"produit": "",
"puissance": "5",
"version": "",
"cleCarrosserie": "",
"groupeSra": "",
"nbPlace": "5",
"datePremiereMiseCirculation": "24062016",
"questionBatterie": "",
"electrique": "",
"genre": "",
"typeVehicule": "",
"numSerieMoteur": "VF1JZ890H55864144",
"valeurANeufSRA": "",
"niveauRisqueVol": "",
"protectionConstructeur": "",
"puissanceDyn": "110",
"segmentVeh": "",
"KtypeId": "5853",
"EngineCC": "1461",
"Co2": "105",
"Cylinders": "4",
"CNIT": "M10RENVP472E768"
}
}
)
Step 2: I try to retrieve the values ​​by making differents requests:
print_r($array->Description);
print_r($array->{'RegistrationDate'});
print_r($array->{'ExtendedData'}->{'puissance'});
print_r($array->ExtendedData->puissance);
// or :
echo $array->Description;
echo $array->ExtendedData->puissance;
echo $array->ExtendedData->libVersion;
I think there is a problem while encoding the Json, I have tried differents solutions but no success.

Answer 1

You only need to decode the JSON into a PHP data structure. Then you can access its properties
$xml = simplexml_load_string($my_xml);
$data = json_decode($xml->vehicleJson); // 👈 just decode the string
echo $data->Description;
echo $data->ExtendedData->puissance;
echo $data->ExtendedData->libVersion;
Demo ~ https://3v4l.org/ZjE9H