I'm using this kind of data binding in PHP, is it safe?
$sql = "CALL registerUsers(?, ?, ?, ?, ?, ?, ?)";
$stmt = $conn->prepare($sql);
$stmt->bind_param("sssssss", $_usr_code, $_usr_eml, $_usr_name, $_usr_pass, $_fileName, $_usr_type, $_usr_role);
$stmt->execute();
I have tried to code a genetic algorithm to guess the coefficients of a degree 4 polynomial. The information initially provided is values of y = f(x) for different x using the original polynomial. I then generate 100 polynomials with randomly selected coefficients. These polynomials are then rank...
I got this two subjects that both have a delay and I need the second one to be subscribed when the first one is completed, asynchronously. Both subjects only emit once (http requests) and I'm trying to avoid nested subscriptions but I can't figure out an optimal solution.
What I've got so far: St...
I have a controller whose role is to persist some data into an external resource (could be a file, database, or anything else). This class takes generic objects, which may implement INotifyPropertyChanged, or INotifyStateChanged, or none of them. Note the later is a simplified version of INotifyP...
I have a C# program to check if a hard coded host is available and if not, waits 5 seconds then checks again (this is a loop). How can it be enhanced?
using System;
using System.Net.NetworkInformation;
using System.Windows.Forms;
namespace trial17
{
public partial class Form5 : Form
{
...
I have a simple chat system. I have built this to scale so I would appreciate optimisation tips or alternative table structures too. This does not include the pub/ sub queue system.
Users
| id | name | createdAt
Conversations - 1 Conversation has many messages & many participants
| id | lastMess...
I am trying to create a function which can visualize(compare) two items of 'Platform', 'Genre' and 'Publisher' according to the 'Global_Sales' in different 'Year'.
The DataFarame looks like:
Code:
`def compare_two(by, first, second):
"""
by: Genre or Platform or Publisher
first: ...
I'm pulling data in from an API and putting it in the top two rows of a sheet. This script is to copy the data from the "pull" sheet into a daily sheet. The rub is that the data may change and I want to dynamically copy the data over; i.e. if the column header exists, put the new data in the bo...
I am attempting to perform Histogram Equalization on V channel in HSV color space.
The experimental implementation
base.h
/* Develop by Jimmy Hu */
#include <math.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define MAX_PATH 256
#define...
