Blog : 101

How to test if a form is submitted in PHP?

May 15, 2017 By Web Traffic Exchange Programming 0 Last Modified on 2024-01-16

We live in a very busy world, and sometimes we try to get things done quick-and-dirty. One of the most popular examples is to create a PHP script that renders a view and also handles form submission (action). So, what is the best way to test if a form has been submitted?

Multiple Constructors in PHP

Apr 15, 2017 By Web Traffic Exchange Programming 0 Last Modified on 2024-01-16

In most object-oriented programming languages such as Java, C++, and C#, you can define multiple constructors each having different signatures. The class calls the correct constructor based on the number of parameters, and data type of input parameters. In PHP5, however, you can have one and only one constructor. Constructor in PHP is defined with a reserved keyword, __construct(). If the __construct function doesn’t exist, PHP5 will search for the old-style constructor function by the name of the class.

Javascript Overview

Jan 19, 2017 By Web Traffic Exchange Programming 0 Last Modified on 2024-02-08

JavaScript is an object-oriented scripting language designed to be embedded in HTML pages for added interactivity and to offer intelligence to web pages. JavaScript provides a set of objects (Array, Date, and Math), and language elements (Operators, Conditional Controls, and Statements). Javascript is primarily used on the client side to control the browser elements and HTML Document Object Model (DOM) to offer interactivity to users.

Retrieve duplicate values in a database table with SQL

Jan 18, 2017 By Web Traffic Exchange SQL 0 Last Modified on 2024-01-16

There was an error with one of our applications, and I needed to find table rows with duplicate values. The table column was not defined to have a unique index, but we weren't anticipating duplicate values. I needed an easier way to identify duplicate values in a table with a simple SQL statement.

Double and Triple equal operators in PHP

Jan 13, 2017 By Web Traffic Exchange Programming 0 Last Modified on 2024-01-16

Even if you're a seasoned programmer, you may not have seen triple equals operator in most programming languages. In PHP, the triple equals (===) operator was introduced in version 4 and it checks for equality similar to the double equals (==) operator but also checks the type of variable. Here are the differences between single, double, and triple equals operators.

PHP Soap Client Example

Oct 13, 2017 By Web Traffic Exchange Programming 0 Last Modified on 2024-01-16

Using the SoapClient in PHP allows you to interact with SOAP (Simple Object Access Protocol) web services. Here's a basic guide on how to use the SoapClient in PHP.

Where is php.ini file located?

Jan 13, 2018 By Web Traffic Exchange Linux , Programming 0 Last Modified on 2024-01-16

When you are working with various flavors of Linux servers, you may not know where the php.ini file is located. The php.ini file is a PHP configuration file that is used to customize the behaviors and features of the PHP scripting language. A php.ini file is placed in different directory locations of a server depending on the flavor and version of the Linux server you're working with.

How to name a Facebook fan page?

Jan 13, 2012 By Web Traffic Exchange Social Media 0 Last Modified on 2024-02-21

Setting up a business page under your Facebook account is an integral part of building traffic to your "business" website. Facebook allows a business to set up a vanity URL (or username), such as facebook.com/webtrafficexchange, but it seems to be a mystery for many and it isn't clear how to claim your business username.

My serial printer doesn't work. What shall I do?

Jan 13, 2011 By Web Traffic Exchange Peripherals 0 Last Modified on 2024-01-16

The choice between a serial printer, parallel printer, or USB printer depends on various factors such as the specific requirements of the application, the type of data to be printed, and the available technology. Here are some considerations that might influence the preference for a serial printer over parallel or USB printers.

TCP Sweep: What is causing it?

Jan 23, 2011 By Web Traffic Exchange Networks 0 Last Modified on 2024-01-16

Running a company as a reseller web host, you'll often receive an email from your upstream provider reporting security violations. If you do not correct the problem promptly, your upstream provider may block inbound and outbound traffic from the affected server.