Load data from JSON file to MYSQL database - php

Question

I am trying to store two fields from the JSON data found here in a mysql database. First I create PHP arrays for the data I want using:
$o = file_get_contents("vixData.json");
$o = json_decode($o);
$date = [];
$close = [];
$set = $o->dataset->data;
foreach($set as $pos)
{
array_push($date,$pos[0]);
array_push($close,$pos[4]);
}
Works fine. Now I am trying to adapt This question on inserting multiple rows via a php array. First I implode my arrays:
$date = implode(",", $date);
$close = implode(",", $close);
Then try to insert to the db using:
$sql = "INSERT INTO vix (date,close) VALUES (".$date.",".$close.")";
if (mysqli_multi_query($dbc, $sql)) {
echo "VIX Load Successful";
} else {
echo "VIX Load Error";
}
I'm seeing my load error. There is no database connection issue because $dbc is used earlier in my script. Trying to debug; is my SQL INSERT statement valid? Can anyone see the issue?
Kind regards,

Answer 1

Just looking at it quickly, it seems your values are not wrapped in quotes in your SQL. Try this:
$sql = "INSERT INTO vix (date,close) VALUES ('".$date."','".$close."')";
Removing the concat operator (.) will result in the same.

Answer 2

There are two issues in your code.
As mentioned other mate you need to use quotes for Date string.
Second you can not use mysqli_multi_query() as like that.
Modified Code:
You can use multiple INSERT Statement as like that:
$o = file_get_contents("vixData.json");
$o = json_decode($o);
$date = [];
$close = [];
$set = $o->dataset->data;
foreach($set as $pos)
{
array_push($date,$pos[0]);
array_push($close,$pos[4]);
}
$sql = "";
foreach ($date as $key => $value) {
$sql .= "INSERT INTO vix (date,close) VALUES ('".$value."','".$close[$key]."'); ";
}
if (mysqli_multi_query($dbc, $sql)) {
echo "VIX Load Successful";
} else {
echo "VIX Load Error";
}

Answer 3

Remove the double quotes and concatinator wrapping your Values.
$sql = "INSERT INTO vix (date,close) VALUES ('$date','$close')";