Multilingual Contact Form 7 with Polylang Plugin

This plugin makes it possible to use Contact Form 7 forms on multilingual pages by using Polylang and its string translations.

Other than existing solutions you don´t have to create a form for each language, but you can use one single CF7 form for all languages.

How does it work?

With this plugin active, you can setup translatable placeholders in your forms, emails and form messages.

The placeholders are using curly braces, like this: {Text to translate}.

When these are setup, you can then translate the strings in Languages > String translations, filter for “Contact Form 7”

Translate form messages

This plugin gives you two ways of translating the form messages.

The simple way: You only have to make sure the form messages are all set to the english default values. Then they are automatically translated via the normal plugin language pack.
You may have to update your WordPress language packs after setting up your languages in Polylang.

The custom way: Set the strings (or part of strings) you want to have translated in curly braces and they will appear in the Polylang string translations where you can translate them.

1. Upload the zip to the /wp-content/plugins/ directory
2. Activate the plugin through the ‘Plugins’ menu in WordPress
3. You also need the plugins [Contact Form 7] (https://wordpress.org/plugins/contact-form-7/) and [Polylang] (https://wordpress.org/plugins/polylang/)
4. Create a from and add the strings that have to be translated in curly braces, e.g. {Your Message}
5. Translate the strings in Polylang via Languages > String translations, filter for “Contact Form 7”
6. Create a page for the form for every of your website´s languages and add the same form to all of them

1. 

   Make strings translatable by putting them into curly braces

2. 

   Translate strings in the Polylang String translations

3. 

   Example contact form in different languages

1.0.11

• implement detection of untranslatable custom message strings
• implement feature to reset message strings
• improve detection of current language in AJAX form submit

1.0.10

• fix issue with mb_stripos(), see https://wordpress.org/support/topic/critical-error-with-last-update/#post-17711176

1.0.9

• fix issue with translated select and multi checkbox fields, see https://wordpress.org/support/topic/conflict-with-contact-form-7-validations/

1.0.8

• fix critical error caused by changed and removed functions in polylang

1.0.7

• fix critical error caused by incompatibility with https://wordpress.org/plugins/drag-and-drop-multiple-file-upload-contact-form-7/

1.0.6

• fix critical error

1.0.5

• make ajax response fix optional

1.0.4

• fix fatal errors when polylang is not active
• fix strings with special characters not being translated
• fix pipes feature for select, checkbox, radio

1.0.3

• fix ajax response messages not being translated

1.0.2

• fix issue of strings needing a second reload after language change to be displayed correctly
• fix form lang attribute to be set to current locale

1.0.1

• remove test setting

1.0.0

• Initial release