How to get data from JSON after decoding - php

Question

I am trying to get data from a JSON that's a bit complex for me.
How can I get the value in Amount or Transaction date
I can get the MerchantRequestID using this code
$mpesaResponse = file_get_contents('php://input');
$jsonMpesaResponse = json_decode($mpesaResponse, true);
$MerchantRequestID = $jsonMpesaResponse["Body"]["stkCallback"]["MerchantRequestID"];
// An accepted request
{
"Body":{
"stkCallback":{
"MerchantRequestID":"19465-780693-1",
"CheckoutRequestID":"ws_CO_27072017154747416",
"ResultCode":0,
"ResultDesc":"The service request is processed successfully.",
"CallbackMetadata":{
"Item":[
{
"Name":"Amount",
"Value":1
},
{
"Name":"MpesaReceiptNumber",
"Value":"LGR7OWQX0R"
},
{
"Name":"Balance"
},
{
"Name":"TransactionDate",
"Value":20170727154800
},
{
"Name":"PhoneNumber",
"Value":254721566839
}
]
}
}
}
}
At the moment it comes out blank what ever i try

Answer 1

You need to loop through your Item array.
<?php
$str = '
{
"Body":{
"stkCallback":{
"MerchantRequestID":"19465-780693-1",
"CheckoutRequestID":"ws_CO_27072017154747416",
"ResultCode":0,
"ResultDesc":"The service request is processed successfully.",
"CallbackMetadata":{
"Item":[
{
"Name":"Amount",
"Value":1
},
{
"Name":"MpesaReceiptNumber",
"Value":"LGR7OWQX0R"
},
{
"Name":"Balance"
},
{
"Name":"TransactionDate",
"Value":20170727154800
},
{
"Name":"PhoneNumber",
"Value":254721566839
}
]
}
}
}
}
';
$json = json_decode($str, true);
foreach($json['Body']['stkCallback']['CallbackMetadata']['Item'] as $index => $item_array_element){
if( $item_array_element['Name'] == 'Amount' ){
echo "Found Amount " . $item_array_element['Value'] . "\n";
}
else if( $item_array_element['Name'] == 'TransactionDate' ){
echo "Found TransactionDate " . $item_array_element['Value'] . "\n";
}
}
Output
Found Amount 1
Found TransactionDate 20170727154800