unable to access arrays of json data -php - php

Question

$response is the data am getting when accessing an external API. i wanted to access the value of the key fileList. I tried like dd($result['serverResponse']['extensionServiceState']['payload']['fileList']) , but it returns error undefined index extensionServiceState . How can i achieve the required result?
$response = curl_exec($curl);
$result = json_decode($response, true);
//var_dump($result);
dd($result['serverResponse']['extensionServiceState']['payload']['fileList']);
before json decode
"""
{"resourceId":"abcd","sid":"123","serverResponse":{"extensionServiceState":[{"payload":{"fileList":[{"filename":"1.m3u8","sliceStartTime":16439789992},{"filename":"2.mp4","sliceStartTime":16439789992}],"onhold":false,"state":"exit"},"serviceName":"web_recorder_service"},{"payload":{"uploadingStatus":"uploaded"},"serviceName":"upload_service"}]}}
"""
after json decode
array:3 [
"resourceId" => "abcd"
"sid" => "123"
"serverResponse" => array:1 [
"extensionServiceState" => array:2 [
0 => array:2 [
"payload" => array:1 [
"uploadingStatus" => "uploaded"
]
"serviceName" => "upload_service"
]
1 => array:2 [
"payload" => array:3 [
"fileList" => array:2 [
0 => array:2 [
"filename" => "1.m3u8"
"sliceStartTime" => 1643986576940
]
1 => array:2 [
"filename" => "2.mp4"
"sliceStartTime" => 1643986576940
]
]
"onhold" => false
"state" => "exit"
]
"serviceName" => "web_recorder_service"
]
]
]
]
var_dump($$result) after json decode shows the below data
array(3) {
["resourceId"]=>
string(4)
"abcd"
["sid"]=>
string(3) "123"
["serverResponse"]=>
array(1) {
["extensionServiceState"]=>
array(2) {
[0]=>
array(2) {
["payload"]=>
array(1) {
["uploadingStatus"]=>
string(8) "uploaded"
}
["serviceName"]=>
string(14) "upload_service"
}
[1]=>
array(2) {
["payload"]=>
array(3) {
["fileList"]=>
array(2) {
[0]=>
array(2) {
["filename"]=>
string(45) "1.m3u8"
["sliceStartTime"]=>
int(16439789992)
}
[1]=>
array(2) {
["filename"]=>
string(46) "2.mp4"
["sliceStartTime"]=>
int(16439789992)
}
}
["onhold"]=>
bool(false)
["state"]=>
string(4) "exit"
}
["serviceName"]=>
string(20) "web_recorder_service"
}
}
}
}

Answer 1

Either you pasted the wrong content or json_decode is lying to you. You asked for an associative array from json_decode (by passing the second argument as true). The result of that should actually look like this:
Array
(
[resourceId] => abcd
[sid] => 123
[serverResponse] => Array
(
[extensionServiceState] => Array
(
[0] => Array
(
[payload] => Array
(
[fileList] => Array
(
[0] => Array
(
[filename] => 1.m3u8
[sliceStartTime] => 16439789992
)
[1] => Array
(
[filename] => 2.mp4
[sliceStartTime] => 16439789992
)
)
[onhold] =>
[state] => exit
)
[serviceName] => web_recorder_service
)
[1] => Array
(
[payload] => Array
(
[uploadingStatus] => uploaded
)
[serviceName] => upload_service
)
)
)
)
So therefore, to get what you want you would need to do this:
dd($result['serverResponse']['extensionServiceState'][0]['payload']['fileList']);
But your data contains multiple items inside extensionServiceState so you may want to loop over those.