JSON -> multidimensional array in PHP -> SQL - php

Question

I am struggling with the problem of transferring json-multidimensional array data to SQL.
This is my json file (data.json):
{
"Data 1": {
"Text1": "Anything1",
"Text2": "Anything2"
},
"Data 2": {
"2018-08-02": {
"1.": "145",
"2.": "258"
},
"2018-08-03": {
"1.": "428",
"2.": "528"
},
"2018-08-04": {
"1.": "727",
"2.": "514"
}
}
}
I have a php code:
<?php
$db = new PDO('mysql:host=localhost;dbname=test','root','');
$jsonData = file_get_contents('data.json');
$data = json_decode($jsonData, true);
?>
So now I have a php array $data.
I need to load an array into the following columns in sql: "DATE" (eg "2018-08-02" etc), "1.", "2.".
This is what the final effect in mysql should look like
And I do not know what to do next.
I tried to do as it is shown in this video: https://www.youtube.com/watch?v=4zTjCpBqSbw and ia other websites (https://www.w3schools.com/js/js_json_php.asp), but for me the date (eg "2018-08-02") is a variable and I do not know how to solve the problem in this case.

Answer 1

Here's one way you could do it.
https://3v4l.org/peLqP
BUT you should not be inserting data in this way - this is for illustration only. Use prepared statements or something similar.
<?php
$json = "{
\"Data 1\": {
\"Text1\": \"Anything1\",
\"Text2\": \"Anything2\"
},
\"Data 2\": {
\"2018-08-02\": {
\"1.\": \"145\",
\"2.\": \"258\"
},
\"2018-08-03\": {
\"1.\": \"428\",
\"2.\": \"528\"
},
\"2018-08-04\": {
\"1.\": \"727\",
\"2.\": \"514\"
}
}
}";
$jsonDecoded = json_decode($json, true);
foreach ($jsonDecoded['Data 2'] as $dateKey => $data) {
$values = implode(',', $data);
$statement = "INSERT INTO mytable (TheDate, Value1, Value2) VALUES ('{$dateKey}'," . $values . ");";
echo $statement . PHP_EOL;
}
Output:
INSERT INTO mytable (TheDate, Value1, Value2) VALUES ('2018-08-02',145,258);
INSERT INTO mytable (TheDate, Value1, Value2) VALUES ('2018-08-03',428,528);
INSERT INTO mytable (TheDate, Value1, Value2) VALUES ('2018-08-04',727,514);