Insert Data from a JSON to MySQL database table - php

Question

I am trying to insert data to 2 different tables in my database.
First table is named business which I have done it to insert data to from the json file to the database.
But when I am trying to insert data into table named business_phone it does not do anything.
Here is my code for inserting the data:
$query = '';
$query_phones='';
$table_data = '';
$filename = "businesses.json";
$businesses = file_get_contents($filename);
$business = json_decode($businesses, true);
foreach($business as $row)
{
$query .= "INSERT INTO business(title, address, website, page) VALUES ('".$row["title"]."', '".$row["address"]."', '".$row["website"]."', '".$row["page"]."'); ";
//data that i will show on page
$table_data .= '
<tr>
<td>'.$row["title"].'</td>
<td>'.$row["address"].'</td>
<td>'.$row["website"].'</td>
<td>'.$row["page"].'</td>
</tr>
';
}
foreach($business as $row)
{
$query_phones .="INSERT INTO business_phones(business_title, phone_number, phone_name) VALUES ('".$row["title"]."', '".$row["number"]."', '".$row["name"]."');";
}
Here is some code from the json file
[
{
"title": "CONSERVE IT LTD",
"address": "12 Truman Ave (10) ",
"phones": [
{
"name": "telephone_1",
"number": "876-754-0220"
},
{
"name": "telephone_2",
"number": "876-754-0221"
}
],
"website": "www.conserveitja.com",
"page": 1
},
{
"title": "Consie Walters Cancer Hospital",
"address": "22 Deanery Rd (3) ",
"phones": [
{
"name": "telephone_1",
"number": "876-930-5016"
}
],
"page": 1
},
...
]

Answer 1

I don't know how you to handle within php but you can create an auxiliary table to be populated from the file, and then use JSON_TABLE function for the key values to be inserted into that table, provided you're using MySQL DB ver. 8+ :
INSERT INTO business(title, address, website, page)
SELECT t.*
FROM tab
CROSS JOIN
JSON_TABLE(jsdata, '$[*]' COLUMNS (
title VARCHAR(100) PATH '$.title',
address VARCHAR(100) PATH '$.address',
website VARCHAR(100) PATH '$.website',
page VARCHAR(100) PATH '$.page')
) t
and
INSERT INTO business_phones(business_title, phone_number, phone_name)
SELECT t.*
FROM tab
CROSS JOIN
JSON_TABLE(jsdata, '$[*]' COLUMNS (
business_title VARCHAR(100) PATH '$.title',
NESTED PATH '$.phones[*]' COLUMNS (
phone_number VARCHAR(100) PATH '$.number',
phone_name VARCHAR(100) PATH '$.name')
)
) t
a side Note concatenations for sql statements are vulnerable to Injection for most of the programming languages as #Magnuss Eriksson mentioned.
Demo

Answer 2

$row["number"] is not valid. It will be $row["phones"][0] or $row["phones"][1]. Because according to your data "number" and "name" inside of "phones" which is array.
You can nested loop through "phones"
foreach($row["phones"] as $contact){
$query .="INSERT INTO business_phones(business_title, phone_number,
phone_name) VALUES ('".$row["title"]."', '".contact."',
'".$row["name"]."');"
}