php Curl iterate through json decoded array - php

Question

I have a problem with a json decoded array using cURL. I am gathering data from Leadfeeder to get recent companies that visited our site. I have a custom start and end date and I wish to return all the companies that visited in the day. I can do this but it returns a json array. I am only able to access one company. However I need to access the entire array
below is an example of the code
$url = "https://api.leadfeeder.com/accounts/youraccount/visits?start_date=".date("2018-02-04")."&end_date=".date("Y-m-d").""; // Captcha plugin url
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
curl_setopt($ch, CURLOPT_HTTPHEADER,array('Authorization: Token token=Token-here'));
$result = (string)curl_exec($ch);
echo "<pre>";
$leadfeeder = json_decode($result, true);
#$lead_id = $leadfeeder['data'][1]['attributes']['lead_id'];
foreach ($leadfeeder as $r) {
echo $r['data'];
}
When I run the above I get the following error
Notice: Undefined index: data in /opt/lampp/htdocs/leadfeeder.php on
line 28
Notice: Undefined index: data in /opt/lampp/htdocs/leadfeeder.php on
line 28
This is an example of the output
Array
(
[data] => Array
(
[0] => Array
(
[id] => 86b8e468-0af7-11e8-8738-11129da81150
[type] => visits
[attributes] => Array
(
[source] => en.wikipedia.org
[medium] => referral
[referring_url] =>
[page_depth] => 1
[visit_route] => Array
(
[0] => Array
(
[hostname] =>
[page_path] => /
[previous_page_path] => (entrance)
[time_on_page] => 0
[page_title] =>
[page_url] =>
[display_page_name] =>
)
)
[keyword] =>
[visit_length] => 0
[started_at] => 2018-02-05T23:51:00.000Z
[date] => 2018-02-05
[hour] => 23
[lead_id] => 02e01b12-2c9b-11e5-b645-3df00765f195_uM2sktjSDJNrnkRHg49WRe
)
)