Parse this JSON OBJECT in PHP - php

Question

I am going to be receiving a JSON object via HTTP POST and I am finding it difficult to parse it. This is what the JSON object looks like:
{ login: {username: 123, password: 456} }, questions:[{ name: "insomnia", type: "boolean", problem: true, question: "Did you experience insomnia?", answer: null},{ name: "go-to-bed", type: "amount", problem: false, question: "When did you go to bed?", answer: null }]}
I want to parse it into 3 different variables $username, $password and $q
From the example, this is what I expect it to be:
echo $username // **output:** 123
echo $password // **output:** 456
echo $q //**output:** questions:[{ name: "insomnia", type: "boolean", problem: true, question: "Did you experience insomnia?", answer: null},{ name: "go-to-bed", type: "amount", problem: false, question: "When did you go to bed?", answer: null }]

Answer 1

First your example is not a valid json. Here the valid one:
[{
"login": {
"username": 123,
"password": 456
},
"questions": [{
"name": "insomnia",
"type": "boolean",
"problem": true,
"question": "Did you experience insomnia?",
"answer": null
}, {
"name": "go-to-bed",
"type": "amount",
"problem": false,
"question": "When did you go to bed?",
"answer": null
}]
}]
Next you can use json_decode from a string:
$x = '[{
"login": {
"username": 123,
"password": 456
},
"questions": [{
"name": "insomnia",
"type": "boolean",
"problem": true,
"question": "Did you experience insomnia?",
"answer": null
}, {
"name": "go-to-bed",
"type": "amount",
"problem": false,
"question": "When did you go to bed?",
"answer": null
}]
}]';
$q = json_decode($x);
print_r($q);
echo $q[0]->login->username;

Answer 2

The JSON in the example is invalid, I fixed it and put together a test, I think this is what you're looking for.
<?php
$json = <<<JSON
{
"login": {
"username": 123,
"password": 456
},
"questions": [
{
"name": "insomnia",
"type": "boolean",
"problem": true,
"question": "Did you experience insomnia?",
"answer": null
},
{
"name": "go-to-bed",
"type": "amount",
"problem": false,
"question": "When did you go to bed?",
"answer": null
}
]
}
JSON;
$decoded = json_decode($json);
$username = $decoded->login->username;
$password = $decoded->login->password;
// Re-encode questions to a JSON string
$q = json_encode($decoded->questions);
echo $username."\n";
echo $password."\n";
echo $q."\n";