I have a function in php that returns this json array, this is the function
$token = $db->getTokenFromEmail($email);
echo $token;
and this is what i get:
[{"unique_id":"cBuJ-xsDDAo:APA91bHYgPwuwXGVxNMuW_Xs0u5bvbr_QSJq8G1_tZ-nGHOdRB0Nv5ijb2BcaP_wUkpyxwERo7cuQxj89YHjOZdIeIwBOGyeHMP_Ywkg_mocfZQr-CxOzy41i8GKj3X6WFjLZJU4ZcbK"}]
My question is how can I get the value (cBuJ-xsD...)? I have tried this but it doesn't work
$obj = json_decode($token,true);
echo $obj['unique_id'];
Your token's type is a string, and you are correct to use json_decode.
If you try to var_dump the value you will get:
$token = '[{"unique_id":"cBuJ-xsDDAo:APA91bHYgPwuwXGVxNMuW_Xs0u5bvbr_QSJq8G1_tZ-nGHOdRB0Nv5ijb2BcaP_wUkpyxwERo7cuQxj89YHjOZdIeIwBOGyeHMP_Ywkg_mocfZQr-CxOzy41i8GKj3X6WFjLZJU4ZcbK"}]';
$obj = json_decode($token,true);
var_dump($obj);
And the output is:
array(1) {
[0]=>
array(1) {
["unique_id"]=>
string(152) "cBuJ-xsDDAo:APA91bHYgPwuwXGVxNMuW_Xs0u5bvbr_QSJq8G1_tZ-nGHOdRB0Nv5ijb2BcaP_wUkpyxwERo7cuQxj89YHjOZdIeIwBOGyeHMP_Ywkg_mocfZQr-CxOzy41i8GKj3X6WFjLZJU4ZcbK"
}
}
You can see that the $obj variable is an array, and it's first element is another array that has the unique_id key.
To get to that you should use:
$obj[0]['unique_id'];
print_rit, and you'll see the structure