Creating a multidimensional array from json in php - php

Question

I have a json file with a lot of records with fields for date, time and isApproved. What I am trying to do is to create a json rray that has dates for all the records that are approved. And the dates have all the hours that are booked for the current date.
So from this... :
[{"fullName":"Jojn Petkobsky","userName":"user1","phone":"12415455","email":"ees#asd.com"date":"11\/16\/2016","time":"1pm ","reason":"ReaReasonReaeason","isApproved":0,"label":"warning","status":"Approved"},{"fullName":"Zoltan Heinkelman","userName":"user2","phone":"12415455","email":"ees#asdd.com"date":"11\/16\/2016","time":"2pm ","reason":"ReaReasonReaeason","isApproved":1,"label":"warning","status":"Approved"}{"fullName":"Jojn Petkobsky","userName":"user1","phone":"12415455","email":"ees#asd.com"date":"11\/16\/2016","time":"1pm ","reason":"ReaReasonReaeason","isApproved":1,"label":"warning","status":"Approved"},{"fullName":"Frank Heinkelman","userName":"user3","phone":"12415455","email":"ees#asddd.com"date":"10\/11\/2016","time":"2pm ","reason":"ReaReasonReaeason","isApproved":1,"label":"warning","status":"Approved"}]
...i can have something like this, so i can have all the booked hours for a given date.
{"12/11/16"😞
{"time" :"10am"},
{"time" :"1pm"},
{"time" :"5pm"}
]
"12/10/16"😞
{"time" :"9am"}
]
}
I tried with something like this, but couldn't really finish it :
$string = file_get_contents("appointments.json");
$json_a = json_decode($string, true);
$date;
$datesTimes = array();
foreach($json_a as $json_r){
if ($json_r['isApproved']==1) {
$date = $json_r['date'];
//another foreach?
}
}
Any help will be appreciated!

Answer 1

As I mentioned in the comments, your JSON is NOT valid so I have fixed it to a point to show how it can be done.
//Fixed JSON as much as I could to show in example.
$json = '
[
{
"fullName": "Jojn Petkobsky",
"userName": "user1",
"phone": "12415455",
"email": "ees#asd.com",
"date": "11\/16\/2016",
"time": "1 pm",
"reason": "ReaReasonReaeason",
"isApproved": "0",
"label": "warning",
"status": "Approved"
},
{
"fullName": "Kitson88",
"userName": "user2",
"phone": "122323325",
"email": "eadasds#asasdasdd.com",
"date": "11\/16\/2016",
"time": "12 pm",
"reason": "ReaReasonReaeason",
"isApproved": "0",
"label": "warning",
"status": "Approved"
},
{
"fullName": "Jamie",
"userName": "user2",
"phone": "122323325",
"email": "eadasds#asasdasdd.com",
"date": "12\/16\/2016",
"time": "8 pm",
"reason": "ReaReasonReaeason",
"isApproved": "0",
"label": "warning",
"status": "Approved"
}
]
';
$array = json_decode($json, true);
//This will be you rnew Array for holding the needed data.
$approved = [];
foreach ($array as $value) {
if ($value['status'] === 'Approved') { //Any check really which will validate Approved
if (array_key_exists($value['date'], $approved)) { //Check if key exists note** will only work on 1D Array
array_push($approved[$value['date']], $value['time']); //If so, then append
} else { //If not, then create it and add value
$approved += [$value['date'] => [$value['time']]];
}
}
}
//Encode back to JSON
$newJson = json_encode($approved);
Output as JSON
{
"11\/16\/2016": ["1 pm", "12 pm"],
"12\/16\/2016": ["8 pm"]
}
http://php.net/manual/en/function.array-key-exists.php
http://php.net/manual/en/function.array-push.php