Parsing a JSON file with multiple levels in a MySQL database - php

Question

I've some trouble with parsing a JSON file into a MySQL database. It's an export of some Facebookstats.
Because I've multiple export of multiple pages, it's important that I've the corresponding ID in the database.
The JSONfile (or cURL from Facebook) looks like this:
{
"data": [
{
"name": "impressions",
"period": "week",
"values": [
{
"value": 123456789,
"end_time": "2016-01-01T08:00:00+0000"
},
{
"value": 12345678,
"end_time": "2016-01-02T08:00:00+0000"
},
{
"value": 1234567,
"end_time": "2016-01-03T08:00:00+0000"
},
{
"value": 123456,
"end_time": "2016-01-04T08:00:00+0000"
},
{
"value": 12345,
"end_time": "2016-01-05T08:00:00+0000"
}
],
"title": "Weekly Impressions",
"description": "The number of impressions seen of any content associated with your Page. (Total Count)",
"id": "101010101010\/insights\/page_impressions\/week"
}
],
"paging": {
"previous": "1",
"next": "2"
}
}
I would, ideally, parse this data into a MySQL database that looks like this:
id value end_time
101010101010 123456789 2016-01-01T08:00:00+0000
101010101010 12345678 2016-01-02T08:00:00+0000
101010101010 1234567 2016-01-03T08:00:00+0000
101010101010 123456 2016-01-04T08:00:00+0000
101010101010 12345 2016-01-05T08:00:00+0000
I hope someone had some ideas :-)

Answer 1

Use json_decode(). Example:
$jsonString = '{
"data": [
{
"name": "impressions",
"period": "week",
"values": [
{
"value": 123456789,
"end_time": "2016-01-01T08:00:00+0000"
},
{
"value": 12345678,
"end_time": "2016-01-02T08:00:00+0000"
},
{
"value": 1234567,
"end_time": "2016-01-03T08:00:00+0000"
},
{
"value": 123456,
"end_time": "2016-01-04T08:00:00+0000"
},
{
"value": 12345,
"end_time": "2016-01-05T08:00:00+0000"
}
],
"title": "Weekly Impressions",
"description": "The number of impressions seen of any content associated with your Page. (Total Count)",
"id": "101010101010\/insights\/page_impressions\/week"
}
],
"paging": {
"previous": "1",
"next": "2"
}
}';
Then decode it to an associative array:
$assocData = json_decode($jsonString, true); //Setting second optional parameter to true makes it return an associative array.
Then access it however you want:
$data = $assocData['data'];