Php change configuration file
When using PHP as an Apache module, you can also change the configuration settings using directives in Apache configuration files (e.g. httpd.conf ) and .htaccess files. You will need «AllowOverride Options» or «AllowOverride All» privileges to do so.
There are several Apache directives that allow you to change the PHP configuration from within the Apache configuration files. For a listing of which directives are PHP_INI_ALL , PHP_INI_PERDIR , or PHP_INI_SYSTEM , have a look at the List of php.ini directives appendix.
Sets the value of the specified directive. Can be used only with PHP_INI_ALL and PHP_INI_PERDIR type directives. To clear a previously set value use none as the value.
Note: Don’t use php_value to set boolean values. php_flag (see below) should be used instead.
Used to set a boolean configuration directive. Can be used only with PHP_INI_ALL and PHP_INI_PERDIR type directives.
php_admin_value name value
Sets the value of the specified directive. This can not be used in .htaccess files. Any directive type set with php_admin_value can not be overridden by .htaccess or ini_set() . To clear a previously set value use none as the value.
php_admin_flag name on|off
Used to set a boolean configuration directive. This can not be used in .htaccess files. Any directive type set with php_admin_flag can not be overridden by .htaccess or ini_set() .
Example #1 Apache configuration example
php_value include_path ".:/usr/local/lib/php" php_admin_flag engine on php_value include_path ".:/usr/local/lib/php" php_admin_flag engine on
PHP constants do not exist outside of PHP. For example, in httpd.conf you can not use PHP constants such as E_ALL or E_NOTICE to set the error_reporting directive as they will have no meaning and will evaluate to 0. Use the associated bitmask values instead. These constants can be used in php.ini
Changing PHP configuration via the Windows registry
When running PHP on Windows, the configuration values can be modified on a per-directory basis using the Windows registry. The configuration values are stored in the registry key HKLM\SOFTWARE\PHP\Per Directory Values , in the sub-keys corresponding to the path names. For example, configuration values for the directory c:\inetpub\wwwroot would be stored in the key HKLM\SOFTWARE\PHP\Per Directory Values\c\inetpub\wwwroot . The settings for the directory would be active for any script running from this directory or any subdirectory of it. The values under the key should have the name of the PHP configuration directive and the string value. PHP constants in the values are not parsed. However, only configuration values changeable in PHP_INI_USER can be set this way, PHP_INI_PERDIR values can not, because these configuration values are re-read for each request.
Other interfaces to PHP
Regardless of how you run PHP, you can change certain values at runtime of your scripts through ini_set() . See the documentation on the ini_set() page for more information.
If you are interested in a complete list of configuration settings on your system with their current values, you can execute the phpinfo() function, and review the resulting page. You can also access the values of individual configuration directives at runtime using ini_get() or get_cfg_var() .
How To Change Your PHP Settings on Ubuntu 14.04
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.
Prerequisites
For this guide, you need the following:
- Ubuntu 14.04 Droplet
- A non-root user with sudo privileges (Initial Server Setup with Ubuntu 14.04 explains how to set this up).
- An understanding of editing files on a Linux system. The Basic Linux Navigation and File Management tutorial explains how to edit files.
- A web server with PHP installed.
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 sudo .
Reviewing the PHP Configuration
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 /var/www/html/ :
Then, create the info.php file:
Paste the following lines into this file and save it:
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.
Modifying the PHP Configuration
The 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.):
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 :
or max_execution_time , which defines how many seconds a PHP process can run for:
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:
Refreshing the info.php page should now show your updated settings. Remember to remove the info.php when you are done changing your PHP configuration.
Conclusion
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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sudo service php7.0-fpm restart Gist with all dependencies.
Thanks for the useful article. You don’t need to restart Apache, you can reload the config:
sudo service apache2 reload 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: Now refresh the page info.php and you will see the changes has been updated that you have made.
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Just for reference:
If you’re using PHP-FPM (e.g. with nginx) then the location of the config file on Ubuntu/Debian is