By Jon Schwenn
PHP is a server side scripting language used by many popular CMS and blog platforms like WordPress and Drupal. It is also part of the popular LAMP and LEMP stacks. Updating the PHP configuration settings is a common task when setting up a PHP-based website. Locating the exact PHP configuration file may not be easy. There are multiple installations of PHP running normally on a server, and each one has its own configuration file. Knowing which file to edit and what the current settings are can be a bit of a mystery.
This guide will show how to view the current PHP configuration settings of your web server and how to make updates to the PHP settings.
For this guide, you need the following:
There are many web server configurations with PHP, but here are two common methods:
This tutorial is applicable to these DigitalOcean One-click Apps as well:
Note: This tutorial assumes you are running Ubuntu 14.04. Editing the
php.ini file should be the same on other systems, but the file locations might be different.
All the commands in this tutorial should be run as a non-root user. If root access is required for the command, it will be preceded by
You can review the live PHP configuration by placing a page with a
phpinfo function along with your website files.
To create a file with this command, first change into the directory that contains your website files. For example, the default directory for webpage files for Apache on Ubuntu 14.04 is
- cd /var/www/html
Then, create the
- sudo nano /var/www/html/info.php
Paste the following lines into this file and save it:
<?php phpinfo(); ?>
Note: Some DigitalOcean One-click Apps have an
info.php file placed in the web root automatically.
When visiting the
info.php file on your web server (http://www.example.com/info.php) you will see a page that displays details on the PHP environment, OS version, paths, and values of configuration settings. The file to the right of the Loaded Configuration File line shows the proper file to edit in order to update your PHP settings.
This page can be used to reveal the current settings your web server is using. For example, using the Find function of your web browser, you can search for the settings named post_max_size and upload_max_filesize to see the current settings that restrict file upload sizes.
Warning: Since the
info.php file displays version details of the OS, Web Server, and PHP, this file should be removed when it is not needed to keep the server as secure as possible.
php.ini file can be edited to change the settings and configuration of how PHP functions. This section gives a few common examples.
Sometimes a PHP application might need to allow for larger upload files such as uploading themes and plugins on a WordPress site. To allow larger uploads for your PHP application, edit the
php.ini file with the following command (Change the path and file to match your Loaded Configuration File. This example shows the path for Apache on Ubuntu 14.04.):
- sudo nano /etc/php5/apache2/php.ini
The default lines that control the file size upload are:
post_max_size = 8M upload_max_filesize = 2M
Change these default values to your desired maximum file upload size. For example, if you needed to upload a 30MB file you would changes these lines to:
post_max_size = 30M upload_max_filesize = 30M
Other common resource settings include the amount of memory PHP can use as set by
memory_limit = 128M
max_execution_time, which defines how many seconds a PHP process can run for:
max_execution_time = 30
When you have the
php.ini file configured for your needs, save the changes, and exit the text editor.
Restart the web server to enable the changes. For Apache on Ubuntu 14.04, this command will restart the web server:
- sudo service apache2 restart
info.php page should now show your updated settings. Remember to remove the
info.php when you are done changing your PHP configuration.
Many PHP-based applications require slight changes to the PHP configuration. By using the
phpinfo function, the exact PHP configuration file and settings are easy to find. Use the method described in this article to make these changes.
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For people with nginx and php7.0 Type
to see the changes
Gist with all dependencies.
Thanks for the useful article. You don’t need to restart Apache, you can reload the config:
This is useful when amending a production server.
This was great. Thank you all so much for your input. I was finally able to adjust my settings and get my theme installed. I am grateful to this community.
how to restart web server
If you’re using PHP-FPM such as on servers managed by ServerPilot, you can also use “.user.ini” files to change PHP settings.
PHP settings can be changed and configured using php.ini file. This blog will give you few common examples. In PHP applications there are some case in which we might need to allow for larger upload files. Such as videos, plugins or large database files. In order to upload large amount of data into your PHP application you need to edit the php.ini file with the following command (This example shows the path for Apache on Ubuntu 14.04.): sudo nano /etc/php5/apache2/php.ini The default lines that control the file size upload are: php.ini post_max_size = 8M upload_max_filesize = 2M You can change your desired maximum file upload size with these default values. For example, if you needed to upload a 60MB file you would changes these lines to: php.ini post_max_size = 60M upload_max_filesize = 60M If you want to increase the amount of memory limit PHP can use, you can set by memory_limit: php.ini memory_limit = 128M or max_execution_time, which defines how many seconds a PHP process can run for: php.ini max_execution_time = 30 When php.ini is configured then you can save the changes and exit php.ini file Now restart the web server to enable the changes that you have just made. For Apache on Ubuntu 14.04, this command will restart the web server: sudo service apache2 restart Now create file info.php and write the following lines: <?php phpinfo(); ?> Now refresh the page info.php and you will see the changes has been updated that you have made.
This comment has been deleted
Just for reference:
If you’re using PHP-FPM (e.g. with nginx) then the location of the config file on Ubuntu/Debian is
Good article, but you can use for getting the ini path simple command like: