php.ini File Location in Ubuntu – How to Find, Open & Edit php.ini

php.ini file location in ubuntu

What is the php.ini file, why we use it ? Where do I find this file on  Ubuntu ? How I open and edit the php.ini file on a terminal. This is the most common questions asked by beginners who are either new to PHP or Linux.

php.ini File

The php.ini file is a default configuration file used when your PHP application runs. When PHP starts it reads the configuration setting from the php.ini file.

If you have installed LAMP on a Ubuntu operating system and unable to find and edit this file then this tutorial is for you.

How to Enable/Install apache mod_rewrite and mod_headers in ubuntu

Last week while i was working on url rewriting i face the problem. I had written the rule in .htaccess but forget to enable the mod_rewrite. Remember your .htaccess rule will not work until you enable the mod_rewrite.

How to install apache2 on ubuntu

Go to terminal (ctrl+Alt+T) and write the following command

Once apache2 installation is complete. Write the command mentioned below to enable mod_rewrite

After enable the mod_rewrite do the changes on following file

After done the changes restart the apache.

To restart apache2

Enable mod_headers in apache

Remember to restart apache 

So to restart apache2 write through terminal

Bubble Sort Program, Algorithm & their Time Complexity

Bubble Sort program, Algorithm & their time complexity.In this tutorial, We are going to learn about bubble sort algorithm and their implementation in various programming languages.

In this tutorial, we are going to cover following things

  • What is Bubble Sort?
  • Bubble sort algorithm & it’s time complexity
  • Bubble sort program in C & C++
  • Java program to implement Bubble sort
  • Bubble sort implementation in PHP


What is Bubble Sort?

Bubble sort is a sorting algorithm, It works by comparing each pair of adjacent elements and switching their positions if necessary. It repeats this process until all the elements are sorted.