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.
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.
php.ini File Location in Ubuntu
The path of php.ini in Ubuntu is /etc/php5/apache2 . Open the terminal and start typing following commands.
$ cd /etc/php5/apache2
To view the files present in apache2 directory, type ls command. The files present in this directory (conf.d and php.ini) are displayed.
If you are not familiar with Linux commands then read my previous post on Linux Commands with Examples .
The other easiest way to locate the php.ini file is using locate command.
$ locate php.ini
How to open & edit the php.ini configuration file on a Terminal
To open & edit the php.ini file I am using vim/vi editor.
Read more about Beginners guide for vi/vim editor.
$ sudo vim php.ini
You can directly open this file using the following command.
$ sudo vim /etc/php5/apache2/php.ini
NOTE – Once you have done the changes in the php.ini file. You need to restart the apache web server so that the new changes get reflected.
To restart the Apache WebServer.
$ sudo /etc/init.d/apache2 restart
$ sudo service apache2 restart
PHP Script to Find the Location of php.ini
If you are working on Windows, Ubuntu or any operating system. You can easily find the location php.ini configuration file using simple PHP script.
Create a PHP file. Let’s name it inipath.php (you can choose any name with a .php extension) .
Open this file in your browser and you will get the path of the php.ini.
I am using Ubuntu and the location of php.ini in Ubuntu is /etc/php5/apache2/php.ini . Similarly, if you are running this script on Windows and Mac you’ll get the path as per their directory structure.
I hope this tutorial helped you to find and edit the php.ini file. If you are still facing any issue you can ask your question through comments.