WPML
WPML Gotchas on Security Restrictions
WPML needs exec() function enabled as it uses Snoopy PHP library which when URL is HTTPS uses exec() to call /usr/bin/curl on Linux and
uses is_executable to check for it. This fails when open_basedir restrictions are in effect, and/or shell functions have been disabled.
Is WPML (domain) compatible with NGINX?
Explanations
Q: What is WPML Multilingual Text Widget? A: WPML added a new text widget, which is similar to the standard WordPress Text widget. WPML widget performs better on multilingual sites - it tells WPML the ID of the widget and so is easier to translate. Otherwise, they’re the same thing.
WPML Setup Guide - Senlin Online
Wplang - WordPress Localization and Internationalization Resources
suppress_filters problem
Fix: WPML for WordPress causes theme to show multiple languages at the same time suppress_filters | Viper007Bond.com Tip: get_posts will suppress_filters by default – Konstantin Kovshenin Debugging Theme Compatibility - WPML
WPML Translating Page Slugs - Enabling Custom-Post-Type Name Localization in WPML
Language Configuration Files - WPML
WPML speed optimization in admin
Disable automated version checks for WPML plugins. Add the following
line to your wp-config.php file:
/* Disable WPML automated version checks */
define("OTGS_DISABLE_AUTO_UPDATES", true);
WPML problems and fixes
It says WPML and W3TC work together, but in all the comments, everyone said domain per language did not work. It looks like no one from WPML ever responded saying that domain per language NOW worked with W3TC.
WPML with W3 Total Cache - WPML WPML with W3TC for Fast and Efficient Multilingual Websites - WPML
Removing WPML
In “WPML » Support » Troubleshooting” click on “Reset and deactivate WPML”. This will delete all your translation and the WPML database entries. Then go to Plugins and delete all the WPML plugins.