Parsing json key value in PHP (multidimensional array) - php

Question

By now I think I 'tried' just about all of the suggested ways to parse the value of one or more keys from a POST response. I've been able to boil it down a little but I'd super appreciate any help someone would be willing to give. My goal is to retrieve the value of the "id" and "campaign_id" keys (or any other key value for that matter). Needless to say I'm at a beginners level ˆ_ˆ
here we go..
$contents = ($this->response);
$enc = ($contents);
results into:
Array ( [0] => [ { "url": "http://www.aguabenito.com", "name": "Bikinis - New arrivals", "prefix": "AGUA", "notes": "", "updated_at": "2017-01-14 16:26:35", "created_at": "2017-01-14 16:26:35", "id": 4609 }, [], [ { "id": 3531, "url_code": "R0uvzO", "alias": null, "campaign_id": 4609, "paidchannel_id": 104, "deleted_at": null, "created_at": "2017-01-14 16:26:35", "updated_at": "2017-01-14 16:26:35" } ] ] )
and then..
for ($i = 0; $i < count($enc); ++$i) {
print $enc[$i];
}
results into:
[
{
"url": "http://www.aguabenito.com",
"name": "Bikinis - New arrivals",
"prefix": "AGUA",
"notes": "",
"updated_at": "2017-01-14 16:26:35",
"created_at": "2017-01-14 16:26:35",
"id": 4609
},
[],
[
{
"id": 3531,
"url_code": "R0uvzO",
"alias": null,
"campaign_id": 4609,
"paidchannel_id": 104,
"deleted_at": null,
"created_at": "2017-01-14 16:26:35",
"updated_at": "2017-01-14 16:26:35"
}
]
I'm afraid to say that I'm just going around in circles from here onwards. When I try to get any of the values I keep getting Illegal string offset or Undefined index errors. Really hoping to learn what I'm doing wrong and how I should go about retrieving the value of one or more of these keys.
Hoping to achieve something in the lines of:
$campaign_id = '4609';
$first_urlcode = 'R0uvzO';
$first_urlcode_id = '3531';
$second_urlcode = 'abc123';
$second_urlcode_id = '1234';

Answer 1

Thanks #EatPienutButter for helping me out!!
This got me walking straight again )))))
$enc = json_decode($contents[0], true);
$campaignid = ($enc[0]['id']);
$first_urlcode = ($enc[2][0]['url_code']);
$first_urlcode_id = ($enc[2][0]['id']);