Changing PHP Settings

Nitro is no longer supported. Please see our announcement and DDEV migration guide.

Nitro ships with PHP settings configured for local development and provides a nitro iniset command to customize them.

Running the iniset command prompts you to choose a site for the custom setting and then the setting you’d like to specify.

In this example, we’re increasing max_execution_time for craft-support.nitro:

$ nitro iniset
Select a site:
  1. craft-support.nitro
  2. another-site.nitro
  3. plugins-dev.nitro
Enter your selection: 1
Which PHP setting would you like to change for craft-support.nitro?
  1. display_errors
  2. max_execution_time
  3. max_input_vars
  4. max_input_time
  5. max_file_upload
  6. memory_limit
  7. opcache_enable
  8. opcache_revalidate_freq
  9. post_max_size
  10. upload_max_file_size
Enter your selection: 2
What should the max execution time be [5000]? 7000
Apply changes now [Y/n]

The PHP setting is stored in your nitro.yaml file:


# ...
    - hostname: craft-support.nitro
        - support.nitro
      path: ~/dev/support
      version: "7.3"
        max_execution_time: 7000
        - calendar
      webroot: craft-support/web
      xdebug: true

Nitro attempts to validate your input; you can’t set max_execution_time to “tomorrow”.

# Available Settings

The following options are available for modification.

  • 1 display_errors
  • 2 max_execution_time
  • 3 max_input_vars
  • 4 max_input_time
  • 5 max_file_upload
  • 6 memory_limit
  • 7 opcache_enable
  • 8 opcache_revalidate_freq
  • 9 opcache_validate_timestamps
  • 10 post_max_size
  • 11 upload_max_file_size

# Manually Overriding PHP Settings

While the iniset command takes care of applying changes for you, you can alternatively add a .user.ini in your web root to override individual PHP settings.

If our web root is web/ and we want to increase max_execution_time using a static file, we’d create web/.user.ini with the following contents:

max_execution_time = 7000

To apply the change, restart the container from Docker Desktop or run nitro restart.

Any values you provide in your .user.ini file will override changes with nitro iniset and any environment variables.

Heroku and other hosting providers may allow your .user.ini file to override settings, so be careful not to make accidental changes in another environment!