Mini Shell

<?php
    include "cnx";
	$mysqli = new mysqli($servername, $username, $password, $DB);

	/* check connection */
	if (mysqli_connect_errno()) {
		echo "Error";
		exit();
	}
    
    $JsonString = file_get_contents("php://input");
    
    $JsonList = array();
    $JsonMap = array();
    $JsonList=json_decode($JsonString, true);
    
     $x = 0;
     while($x < count($JsonList)) {
            $jsone=$JsonList[$x];
        
     $error=filter_var($jsone['error'], FILTER_SANITIZE_STRING);
     $software=filter_var($jsone['software'], FILTER_SANITIZE_STRING); 
     $mac=filter_var($jsone['mac'], FILTER_SANITIZE_STRING); 
     $os=filter_var($jsone['os'], FILTER_SANITIZE_STRING); 
     $os_user=filter_var($jsone['os_user'], FILTER_SANITIZE_STRING); 
     $company=filter_var($jsone['company'], FILTER_SANITIZE_STRING); 
     $description=filter_var($jsone['description'], FILTER_SANITIZE_STRING); 
     $date=filter_var($jsone['date'], FILTER_SANITIZE_STRING); 
     $hour=filter_var($jsone['hour'], FILTER_SANITIZE_STRING);
     $detail=filter_var($jsone['detail'], FILTER_SANITIZE_STRING); 
     $user=filter_var($jsone['user'], FILTER_SANITIZE_STRING); 
     $path=filter_var($jsone['path'], FILTER_SANITIZE_STRING);
     $version=filter_var($jsone['version'], FILTER_SANITIZE_STRING);
     $x++;
    
     }
	$query = "INSERT INTO errors (id,error, software, mac, os, os_user, company, description, date, hour, detail, user, path, version ) VALUES (0,'$error','$software', '$mac', '$os', '$os_user', '$company', '$description', '$date', '$hour', '$detail', '$user', '$path', '$version')";
	$mysqli->query($query);
    echo $query;
	echo $error;

	$mysqli->close();
?>