You do not check if the following variables are set before you assign them. $_POST[‘naam’] $_POST[‘wacht’] As you did with $_POST[‘login’] you can use isset to check they exist before assignment. if (isset($_POST[‘naam’] && isset($_POST[‘wacht’]) { // Do something… } In addition to this in the query you are using the variables $gebruikersnaam and $wachtwoord … Read more
OK, it’s not possible to help you with this directly as too much code is missing (and, frankly, it’s probably to much to just cut&paste it in here and expect people to debug it in their brains…). In cases like this, you have to figure out Which variable is nil Why is it nil In … Read more
I’d personally rather download that 10MB once and for all instead of downloading those additional images every time I play the game; it could be expensive to download all that data. You could of course cache them, so I don’t have to download them again. And you could foreward-download an entire level of images at … Read more
Right I have an answer which works, but it is not the best solution by any means. I really wanted to answer my question with one query, but the only solution I have come up with is to use php and loop the mysql. Yes I know this is not ideal, but I needed to … Read more
public static void main(String[] args){ ArrayList<Integer> list = new ArrayList<Integer>(); list.add(5);list.add(2);// to be continued … int randomInt = list.get((int) (Math.random() * list.size())); System.out.println(randomInt); } You’ll get your List of values, and then you just need to pick randomly an index and get back the value Math.random() will pick a value in [0;1[, if you multiply … Read more
Introduction Generating random numbers is a common task in programming, and it can be useful for a variety of applications. However, sometimes it is desirable to generate random numbers that are weighted towards certain numbers. This can be useful for creating a more realistic random distribution, or for creating a game with a higher chance … Read more
You can use regex and Pattern matching to extract it, e.g.: String s = “If this is good and if that is bad”; Pattern pattern = Pattern.compile(“if(.*?)is”); Matcher m = pattern.matcher(s); if(m.find()){ System.out.println(m.group(1).trim()); } 3 solved Extracting a substring based on second occurence using Java – substringBetween() function [closed]
Introduction The substringBetween() function in Java is a useful tool for extracting a substring based on the second occurrence of a given character or string. This function is part of the Apache Commons Lang library, and it can be used to extract a substring from a larger string. This tutorial will explain how to use … Read more
When an asynchronous method starts getting complicated it’s a sure sign something is wrong. Most of the time async code looks almost the same as synchronous code with the addition of await. A simple polling loop could be as simple as : public async Task<string> waitForCampaignLoadAsync(string uri) { var client=new HttpClient(); for(int i=0;i<30;i++) { token.ThrowIfCancellationRequested(); … Read more
At first, you need to create a migration and add a new column to the users table. I think it is better to keep info about admin creating in the db (if you don’t want to store it, just add :created_by_admin to attr_accessor list instead of this step). add_column :users, :created_by_admin, :boolean, default: false, null: … Read more
Add position: relative to your footer-wrapper class. The links are not actually dead – they are correctly created and have valid links, they are simply unclickable because the footer is unclickable. Adding the css style mentioned above fixes this issue while letting you retain all of your styling. 1 solved HTML Links Not Working – … Read more
Introduction If you have been struggling with HTML links not working, you are not alone. Many web developers have encountered this issue and have been trying to figure out what is causing it. In this article, we will discuss the possible causes of HTML links not working and how to fix them. We will also … Read more
solution.highest_count_words_across_lines is an array of strings. When you do this: solution.highest_count_words_across_lines.map(&:highest_wf_words) you are calling highest_wf_words on each of the array items, and that method is not defined for a String (that is what the error message says). I guess that in fact you want something like this instead: words_found = solution.highest_count_words_across_lines.map( |x| highest_wf_words(x)).flatten UPDATE if … Read more
Add this below your if(hasWon) clause: var turnBtn = document.getElementById(‘turn’); turnBtn.value = (turnBtn.value == “X”) ? “O” : “X”; solved Switching turns in JavaScript Tic-Tac-Toe? [closed]
I think you’re meaning to pass a method as parameter, so the method can execute it as a callback. You should pass a method (without the parenthesis) to the other class and It must match the Action<> definition. public partial class Form1 : Form { public void PaintGui(int percent) { Label1.Text = percent.ToString() + “% … Read more