inserting 4 different files into 1 SQL table row in php - php

Question

As the title says, i want to parse 4 different files and insert them into 1 sql row. I have parsed the files so i have the information, however its not inserting into my table.
This is the code I have. I eliminated the actual sql names and values to save time. My two main questions are 1) is this the right way to do this and 2) is there a better way.
<?php
$connect = mysqli_connect("reserve1", "root", "","server_31");
$dir = "/Users/Administrator/Desktop/Reserve1";
if (is_dir($dir)) {
if ($dh = opendir($dir)) {
foreach(glob("*.json") as $filename) {
$data = file_get_contents($filename);
$array = json_decode($data, true);
foreach($array[0]as $row) {
$sql = "INSERT INTO servers_updated (---)
VALUES ('---)";
$connect->query($sql);
}
foreach(glob("*_processor.json") as $filename) {
$data = file_get_contents($filename);
$info = json_decode($data, true);
foreach($info[1] as $row) {
$sql = "INSERT INTO servers_updated
(--- ) VALUES (---)";
$connect->query($sql);
}
foreach(glob("*_drives.json") as $filename) {
$data = file_get_contents($filename);
$info = json_decode($data, true);
foreach($info[1] as $row) {
$sql=" INSERT INTO servers_updated (---) VALUES (---)";
$connect->query($sql);
}
foreach(glob("*_memory.json") as $filename) {
$data = file_get_contents($filename);
$stuff = json_decode($data, true);
foreach($stuff[1] as $row) {
$sql =" INSERT INTO servers_updated
(--- ) VALUES (----)";
$connect->query($sql);
}
}
}
}
}
}
}
?>