How to Install Any PHP Extension On CentOs

First of all, you have to enable remi repository: Follow step on this website. Backup of Page Now search the available extensions :  Use Command -> yum search php- Above command will show all the available packages with name php. Now select the name of your extension according to your php version (php -version). Restart apache -> systemctl restart … Read more

Best Coding Practices Visual Basic 6

It is up to you to follow following practices. Avoid magic numbers when you can: These are numbers which are hardcoded in your program. Be modular: Putting code and data together into modules hides it from the rest of the program, makes it easier to debug, makes it easier to work with conceptually and even … Read more

Code Commenting Conventions in Visual Basic 6

While programming comments are very useful. As these help the current development and the future development of the program. Comments should provide the clear picture of procedure or variable declaration. A comment should have following sections for procedure  Section Heading  Comment Description  Purpose  What the procedure does  Assumptions  List of each external variable, control, open … Read more

Visual Basic 6 Programming Conventions

The conventions are very handy while working in a team. So following are the prefixes of various types used to declare a variable name so that its properties can be identified easily. Variable Prefixes: Variable scope prefix conventions.These must be first in the name of variable.  Scope  Prefix  Global  g  Module-level or form-level  m  Local … Read more

Types of Scope in Visual Basic 6 Project.

An object’s scope means its visibility to other classes, module, procedure etc. There are two types of scope in Visual Basic projects: variable scope and procedure scope. Variable Scope : There are three levels of variable scope in Visual Basic: at the procedure level, at the form or module level, and at the global level. Visual … Read more

The Parts of A Visual Basic 6 Project

Projects can become quite advanced in Visual Basic, even containing sub-projects of different types. From a programming point of view, however, standard Visual Basic projects usually contain just three types of items: global items, forms, and modules. Forms: They are the templates you base windows on. Besides standard forms, Visual Basic also supports Multiple Document Interface … Read more

Types of Variables in Visual Basic 6

The possible variable types and their ranges :   Variable type Bytes of Storage Range Boolean 1 True or False Byte 1 0 to 255 Currency 8 -922,337,203,685,477.5808 to 922,337,203,685,477.5807 Date 8 1 January 100 to 31 December 9999 and times from 0:00:00 to 23:59:59 Decimal 12 -79,228,162,514,264,337,593,543,950,335 to 79,228,162,514,264,337,593,543,950,335 Double 8 -1.79769313486232E08 to 4.94065645841247E-324 … Read more

Setup Own VPS For Hosting Your Website.

This is a detailed guide to setup your own VPS server for hosting with PHP 7.3, Apache 2.4, Centos 7, PhpMyAdmin, MariaDB 10.3. This is a simple setup and does not modify the configuration of Apache and PHP. Also, there will be no control panel. Everything has to be done via the shell. For free … Read more

General Overview Of UNIX System

First UNIX system was developed in 1969 and ran on systems from microprocessors to mainframes and provided a common execution environment across them. The system was divided into two parts : Programs and services: It is the part readily apparent to users e.g. shell, mail text editor etc. Operating System: That supports above-mentioned programs and service. … Read more