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How to Change PHP max_input_vars Using CloudLinux PHP Selector

How to Change PHP max_input_vars Using CloudLinux PHP Selector

Step-by-step guide to safely increase PHP max_input_vars limit for handling complex forms and large data submissions.

How to Change PHP max_input_vars Using CloudLinux PHP Selector

Overview

The max_input_vars setting in PHP controls the maximum number of input variables your server can process in a single request. This guide explains how to safely modify this setting using CloudLinux PHP Selector when working with complex forms or large amounts of data in WordPress.

Prerequisites

  • Active WPCloud hosting account
  • cPanel access credentials
  • Your hosting plan includes CloudLinux PHP Selector (included with all WPCloud plans)

Common Scenarios for Increasing max_input_vars

  • Working with page builders like Elementor or WPBakery
  • Managing large WooCommerce product catalogs
  • Using complex form builders
  • Handling large menus in WordPress

Important Notes

  • ✅ This change is completely safe
  • ✅ No backup required
  • ✅ No file modifications needed
  • ✅ No database changes made
  • ✅ Changes take effect immediately

Step-by-Step Instructions

1. Access PHP Selector

  1. Log in to your cPanel account
  1. Scroll to the "SOFTWARE" section
  1. Click on "Select PHP Version"
 

2. Modify max_input_vars Setting

  1. Click the "Options" tab at the top of the page
  1. Locate max_input_vars in the settings list
  1. Check the box next to max_input_vars to enable modification
  1. Enter your desired value in the text field

Recommended Values:

Scenario
Recommended Value
Default
1000
Page Builders
3000
Complex Forms
5000
Large Menus
3000
WooCommerce
5000
 

3. Save Changes

  1. Click "Apply" at the bottom of the page
  1. Wait for the confirmation message
  1. Your changes are now active

Verification (Optional)

To verify your changes:

<?php
// Create a file named check.php with this content
echo "Current max_input_vars value: " . ini_get('max_input_vars');

Access this file through your browser (example.com/check.php)

⚠️ Important: Delete the verification file after checking

Troubleshooting

Common Issues

  1. Setting Not Visible
      • Solution: Contact WPCloud support via ticket system
  1. Changes Not Taking Effect
      • Clear browser cache
      • Wait 5 minutes and try again
      • Check PHP version compatibility
  1. Still Experiencing Issues Related settings you might need to adjust:
      • max_execution_time
      • memory_limit
      • post_max_size

Related Settings

Setting
Purpose
Default
max_execution_time
Script timeout
30 seconds
memory_limit
PHP memory usage
256M
post_max_size
POST data size
64M

Support

Need assistance? We're here to help:

  • Response Time: Usually within 15 minutes
 
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Last updated on November 20, 2024

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