PHP accessing array within json object

Question

I created a JSON object in JQuery that looks like this:

var massUpdateDetails = {
 checkone: $('#checkone').val(),
 checktwo: $('#checktwo').val(),
 details: [{
 detailone: $('#detailone').val(),
 detailtwo: $('#detailtwo').val()
 }],
 locs: [{
 locone: $('#locone').val(),
 loctwo: $('#loctwo').val()
 }]
}

When I post the massUpdateDetails object to PHP, I can print out the object like this:

<?php
 if(isset($_POST['massUpdateDetails'])){
 $value = $_POST['massUpdateDetails'];
 }
 print_r($value);
?>

When using print_r($value), here is what I am seeing:

Array
(
 [checkone] => checkoneInfo
 [checktwo] => value1,value2
 [details] => Array
 (
 [0] => Array
 (
 [detailone] => details of one
 [detailtwo] => details of two
 )
 )
 [locs] => Array
 (
 [0] => Array
 (
 [locone] => loc one
 [loctwo] => loc two
 )
 )
 )

I'm trying to set the various values to PHP variable like this:

$checkone= isset($value['checkone']) ? $value['checkone'] : ''; // <-- no problem getting this set
$detailone = isset($value['details']['detailone']) ? $value['details']['detailone'] : ''; // <-- problem is here
echo $detailone;

As you see in the above, I am having a problem setting the variable for $detailone.

When I echo $detailone, I get no error in the console.

What am I doing wrong and how can I fix it?

• Alex Howansky: Tip -- use the null coalesce operator for shorter code: $checkone = $value['checkone'] ?? ''
• Omar Tanti: You need to loop through $value['details'] - foreach($value['details'] as $detail){ echo $detail['detailone'];} or else do $value['details'][0]['detailone']

Answer 1

$value['details'] is an array, so you have to access each element as an array element, e.g. $value['details'][0]['detailone']