Mailchimp JSON using PHP foreach with multiple keys - php

Question

Im using Mailchimp API and getting their user activity. From the array, I have to GET the campaign_id = 1ce6d076f4 first and then match the Campaign ID to all arrays that has action = click so that I can get value of url. Here's the JSON array of the mailchimp.
Array
(
[0] => stdClass Object
(
[action] => click
[timestamp] => 2019-11-12T03:08:40+00:00
[url] => https://nasis.sb:8890/article/burlington-vermont-market-overview
[campaign_id] => 1ce6d076f4
[title] => Sample Campaign v2
)
[1] => stdClass Object
(
[action] => click
[timestamp] => 2019-11-12T02:54:07+00:00
[url] => https://nasis.sb:8890/property/walgreens-burlington-vermont?lid=*|HTML:LINKID|*
[campaign_id] => 1ce6d076f4
[title] => Sample Campaign v2
)
[2] => stdClass Object
(
[action] => open
[timestamp] => 2019-11-12T02:33:55+00:00
[campaign_id] => 1ce6d076f4
[title] => Sample Campaign v2
)
[3] => stdClass Object
(
[action] => sent
[timestamp] => 2019-11-12T02:33:40+00:00
[type] => regular
[campaign_id] => 1ce6d076f4
[title] => Sample Campaign v2
)
[4] => stdClass Object
(
[action] => open
[timestamp] => 2019-10-31T00:38:02+00:00
[campaign_id] => fbe8dfde89
[title] => Sample Campaign v1
)
[5] => stdClass Object
(
[action] => click
[timestamp] => 2019-10-31T00:15:44+00:00
[url] => https://nasis.sb:8890?lid=*|HTML:LINKID|*
[campaign_id] => fbe8dfde89
[title] => Sample Campaign v1
)
)
I am connecting the mailchimp api via wordpress plugin. And here's my code. However, nothing happen when trying to display the $x
$activityDetails = wp_remote_get( 'https://'.$dc.'.api.mailchimp.com/3.0/lists/'.$list_id.'/members/'.$subscriber_hash.'/activity', $args );
$body = json_decode( wp_remote_retrieve_body( $activityDetails ) );
// echo '<pre>'; print_r($body->activity); echo '</pre>';
foreach ( $body->activity as $act ) {
if ( $act->campaign_id == '1ce6d076f4' ) {
$x = $act->action;
}
}
echo '<p> Campaign ID: ' . $x . '</p>';
UPDATE
It looks like I got it to work...
foreach ( $body->activity as $act ) {
if ( $act->campaign_id == '1ce6d076f4' ) {
if ( $act->action == 'click' ) {
$x[] = $act->url;
}
}
}
echo '<pre>'; print_r($x); echo '</pre>';
// Output
Array
(
[0] => https://www.nasinvestmentsolutions.com/article/burlington-vermont-market-overview
[1] => https://nasis.sb:8890/property/walgreens-burlington-vermont?lid=*|HTML:LINKID|*
)