Access JSON Array Data Within Object With PHP - php

Question

stdClass Object (
[id] => 8586332
[email] => hello#myemail.com
[optInType] => Unknown
[emailType] => Html
[dataFields] => Array
(
[0] => stdClass Object ( [key] => FIRSTNAME [value] => Bill )
[1] => stdClass Object ( [key] => FULLNAME [value] => Bill Jones )
[2] => stdClass Object ( [key] => GENDER [value] => )
[3] => stdClass Object ( [key] => LASTNAME [value] => Jones )
[4] => stdClass Object ( [key] => LASTSUBSCRIBED [value] => 2019-12-20T21:13:20.359947Z )
[5] => stdClass Object ( [key] => POSTCODE [value] => )
[6] => stdClass Object ( [key] => THIS_KEY [value] => This Value )
)
[status] => Subscribed )
I have this JSON object and array in PHP that I have decoded.
I am trying to access 'This Value' but I am stuck.
I also need to find a way to do it where I don't know if it will always be number 6.
I have made these attempts:
$object->{"dataFields[1]"};
and
$object['dataFields'][6]['THIS_KEY'];
I can access the email like this:
echo $objec[1]->email;

Answer 1

You will need to search through the subarray for the qualifying object using the key property's value.
There will be functional techniques to do this, but I'll show a simple loop and break technique.
Code: (Demo)
$object = (object) [
'id'=> 8586332,
'email' => 'hello#myemail.com',
'optInType' => 'Unknown',
'emailType' => 'Html',
'dataFields' => [
(object)['key' => 'FIRSTNAME', 'value' => 'Bill'],
(object)['key' => 'FULLNAME', 'value' => 'Tom Jones'],
(object)['key' => 'GENDER', 'value' => ''],
(object)['key' => 'LASTNAME', 'value' => 'Jones'],
(object)['key' => 'LASTSUBSCRIBED', 'value' => '2019-12-20T21:13:20.359947Z'],
(object)['key' => 'POSTCODE', 'value' => ''],
(object)['key' => 'THIS_KEY', 'value' => 'This Value'],
],
'status' => 'Subscribed'
];
foreach ($object->dataFields as $dataRow) {
if ($dataRow->key === 'THIS_KEY') {
echo $dataRow->value;
break;
}
}
Output:
This Value
A functional search can look like this: (Demo)
$index = array_search('THIS_KEY', array_column($object->dataFields, 'key'));
if ($index !== false) {
echo $object->dataFields[$index]->value; // same output as above
}
If you want simpler access to multiple values in the subarray, then assign temporary keys: (Demo)
$assocDataFields = array_column($object->dataFields, null, 'key');
echo $assocDataFields['THIS_KEY']->value;
echo "\n";
echo $assocDataFields['FULLNAME']->value;
Output:
This Value
Tom Jones