Adjusting max_input_vars

Overview

This article explains how to adjust the max_input_vars directive for a website.

Background

The max_input_vars directive controls how many input variables may be accepted in PHP. By default, this is set to 3000, but your website may throw an error informing you that this value is too low. If so, you can raise this value in a phprc file or from your control panel. See these articles to learn more about common PHP customizations.

How to adjust max_input_vars

The following sections explain how to manage the max_input_vars setting for your site.

Adjusting max_input_vars from the panel

To update max_input_vars directly from your panel:

1. Navigate to the Manage Websites page.
2. Click the Manage button to open Website settings, which allows you to modify various configurations for your site.
   • If in Grid view, click the Manage button at the bottom of the website box.
   • If in List view, click the Manage button at the far right of your domain name.
3. Click the Settings tab.

4. In the Website Settings section, click Manage next to PHP.

   The PHP Settings page opens.
5. Scroll down to the PHP settings section.
6. On the General row, click the Modify button.
7. Locate the max_input_vars setting and enter a desired value.

8. Click the Save Changes button when finished.

   No manual restart or process killing is required when using the panel.

Adjusting max_input_vars from from a phprc file

To edit your phprc file:

1. Edit your phprc file using FTP or SSH.

2. Add a line in this file. For example, the following line raises the limit to 5000:

   max_input_vars = 5000

3. Kill off any PHP processes to update your new settings.
4. Check your new settings using a phpinfo.php file. If the value is not updated, try killing off the PHP processes again.

See also

• php.ini overview
• Create a phprc file via FTP
• Create a phprc file via SSH
• Creating and editing a file via SSH
• Creating and editing files via FTP