Server Requirements

Depending on your hosting environment, you may or may not have trouble with certain aspects of Visual Form Builder Pro.

Minimum Requirements

  1. PHP version 5.4 or greater
  2. MySQL version 5.5 or greater
  3. WordPress version 4.4.0 or greater
  4. The wp-content folder permissions should be set to 0755 or 0750

Here are some guidelines on certain web server settings that may alleviate such problems. All settings can be changed in your  php.ini file.

post_max_size 50M
upload_max_filesize 50M
memory_limit 64
max_input_vars 2000
max_input_nesting_level 64

Important note about max_input_vars

For very large forms, you may find that your fields are not saving properly. Indications of this are that adding a field does not save the name or certain options and settings do not save after clicking the Save button.

If this is the case for you, please increase the value for max_input_vars in your server’s php.ini file

Your server may be protected by Suhosin. These are other settings to check for.

suhosin.post.max_vars 2000
suhosin.request.max_vars 2000
suhosin.get.max_vars 100

mod_security is an Apache module that can protect your site from certain attacks. Most hosts customize this module to suit each customer. Some configurations may prevent Visual Form Builder Pro from functioning as intended.

Because these configuration are varied and complex, you should contact your host for assistance in troubleshooting.

mod_security Recommended Base Configuration

These settings are merely recommendations and may not solve the problems with your host. There may be other settings not listed here that your particular hosting environment runs that interferes with Visual Form Builder Pro. Please contact your host in any event if you are experiencing problems.