Append json file with array using php

Question

i have json file with array and i want to add array elemnts to that array using php . please advice me to proceed.

here is my existing json file

data.json

{
"12":{"userId":"1","username":"Ss","password":"33"},
"32":{"userId":"1","username":"Ss","password":"33"}
}

my php file

below is my code part which i need to append with my existing json file.

$data[$thisId] = array( 
    'userId'=> $userId, 
    'username'=> $username,
        'password'=> $password, 
          ); 
$json = json_encode($data);

how can i add this to my json file ? pls advice

: I want to write the data which come from php file into my existing json file

There is no array in your JSON.

Casimir et Hippolyte
– Casimir et Hippolyte

2017-03-15 16:38:10 +00:00
Commented Mar 15, 2017 at 16:38 — Casimir et Hippolyte
– Casimir et Hippolyte, Commented Mar 15, 2017 at 16:38

Guillaume Sainthillier · Accepted Answer · 2019-09-20 10:27:55Z

5

You have to decode your file to append your datas :

$data = json_decode(file_get_contents('data.json'), true);
$data[$thisId] = array( 
    'userId'=> $userId, 
    'username'=> $username,
    'password'=> $password, 
); 
$json = json_encode($data);
file_put_contents('data.json', $json);

edited Sep 20, 2019 at 10:27

answered Mar 15, 2017 at 16:29

Guillaume Sainthillier

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6 Comments

hansi silva Over a year ago

what i want is to write the content of my php file ($json) in to my data.json file . pls advice

Guillaume Sainthillier Over a year ago

You can use file_put_contents function to write your data.json file. You can see my updated answer ;-)

hansi silva Over a year ago

you code works , but it removes existing json part and keep only the latest . how can i keep all

Guillaume Sainthillier Over a year ago

Can you try with json_decode('data.json', true); please ?

Guillaume Sainthillier Over a year ago

Glad to help you ;-)

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