Multi-Dimensional Array Challenge in PHP From Json Data [duplicate] - php

Question

This question already has answers here:
How to extract and access data from JSON with PHP?
(1 answer)
Why does this PHP code just echo "Array"?
(6 answers)
Closed 2 years ago.
I have really been struggling with outputting the content of a json data I received from a rest API response correctly. I have searched a lot and tried different ways but I noticed everyone's is always unique...below is my code..specifically of consideration is the "headers_field" it is an array with a lot of values and keys...and I want to also output these values with the keys...While the ("data") has two values with it...below is what I have tried also but I am just getting the first result from the loop while it returns ("headers_field": Array), ("box: Array")..I used Curl. Kindly look below. Thanks.
{
"data": [
{
"approved": null,
"approved_user_id": null,
"boxes": [],
"created": "2020-05-19T21",
"created_at": "2020-05-19T21",
"edited": null,
"edited_in_affiliate": null,
"edited_in_hdr": null,
"edited_in_web_app": null,
"erp_project_id": null,
"error_description": "",
"header_fields": [
{
"boxes": [],
"code": "creditor_number",
"data_type": "",
"error": "",
"feature_id": nvnnn,
"value": "hhhhh"
},
{
"boxes": [],
"code": "payment_account_number",
"data_type": "",
"error": "",
"value": ""
},
{
"boxes": [],
"code": "order_number",
"data_type": "",
"error": "",
"value": ""
},
{
"boxes": [],
"code": "total_amount_incl_vat",
"data_type": "",
"error": "",
"feature_id": mmm
"value": "hhh"
},
{
"approved": null,
"approved_user_id": null,
"boxes": [],
"created": "2020-05-19",
"created_at": "2020-05-19",
"edited": null,
"edited_in_affiliate": null,
"edited_in_hdr": null,
"edited_in_web_app": null,
"erp_project_id": null,
"error_description": "",
"header_fields": [
{
"boxes": [],
"code": "reference",
"data_type": "",
"error": "",
"value": ""
},
{
"boxes": [],
"code": "payment_swift_bic",
"data_type": "",
"error": "",
"value": ""
},
{
"boxes": [],
"code": "recipient_vat_reg_no",
"data_type": "",
"error": "",
"value": ""
},
{
"boxes": [],
"code": "joint_payment_id",
"data_type": "",
"error": "",
"value": ""
},
{
"boxes": [],
"code": "catalog_debitor_id",
"data_type": "",
"error": "",
"value": ""
},
{
"boxes": [],
"code": "case_number",
"data_type": "",
"error": "",
"value": ""
},
{
"boxes": [],
"code": "payment_account_number",
"data_type": "",
"error": "",
"value": ""
},
{
"boxes": [],
"code": "payment_iban",
"data_type": "",
"error": "",
"value": ""
}
],
"id": 00000,
"image": "https://skkkkkllllllllll
"line_items": [],
"note": "",
"organization_id": 11111,
"organization_voucher_id": 7777,
"page_count": 1,
"status": "successful",
"type": "voucher",
"upload_type": "affiliate",
"uploaded_by_user_id": 0000001
"user_payment_method": "",
"user_voucher_type": ""
}
],
"meta": {
"count": 2
}
}
MY LOOP OPERATION
.....
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $request);
curl_setopt($ch,CURLOPT_HTTPHEADER,$headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
$results= curl_exec($ch);
$g= json_decode($results, true);
$i=0;
$g_length =count($g["data"]);//to count through the child array
for ($i=0; $i < ($g_length);$i++)
{
$k= $g["data"][$i]; //asssigning the array position to a variable
foreach($k as $mydata=>$mvalue) {
$hey = trim($mvalue); //Removes white spaces
if ($mvalue !=="")
echo $mydata. " : " . $mvalue . "<br>";
else
echo "This is empty. <br/>";
///////////////////////////////////////////
foreach($mvalue as $lkey=>$lvalue)
{
$u=is_array($mvalue);
if(($u) and !empty($u))
echo $lkey. ":" . $lvalue. "<br>";
else
echo "what? <br/>";
///////////
foreach($lvalue as $okey=>$ovalue)
{
echo $okey. ":". $value. "</n>";
/////
foreach($ovalue as $key=>$value)
{
$v=is_array($value);
if(($v) and !empty($v))
echo $key. ":" . $value. "<br>";
else
echo "hello";
//print_r($key);
/////
}
}
//////////
}
//////////////////////////////////////////
}

Answer 1

Provided you know how deep the array is that you get back from the API or how many dimensions and you know the key structure will be the same you could use something like this:
NOTE: I took your JSON and did a quick and dirty to spit out all the keys and values - including the nested header fields. Essentially its based on whether the value is an ARRAY. If you know the structure you are expecting you could make this more elegant by creating an array map and a function to process all vals that are sub arrays.
Anyway - I hope the below helps you as a starter:
foreach($theDecodedData['data']["header_fields"] as $row){
foreach($row as $key => $val){
if(!is_array($val)){
echo "$key: $val \n";
}
else{
echo "Contents of $key \n";
foreach($val as $vkey => $vval){
if(!is_array($vval)){
echo "$vkey: $vval \n";
}
else{
echo "Contents of $vkey \n";
foreach($vval as $vvvkey => $vvvval){
if(!is_array($vvvval)){
echo "$vvvkey: $vvvval \n";
}
else{
echo "Contents of $vvvkey \n";
foreach($vvvval as $vvvvkey => $vvvvval){
echo "$vvvvkey: $vvvvval \n";
}
}
}
}
}
}
}
}