This extension is DEPRECATED and REMOVED as of PHP 7.4 or 8.x. What is WDDX – WDDX (Web Distributed Data eXchange) is a programming language, platform and transport-neutral data interchange mechanism designed to pass data between different environments and different computers.
#cd ~<some_user_home> #git clone https://github.com/php/pecl-text-wddx.git #cd pecl-text-wddx #/usr/local/bin/phpize #./configure #make #make install
Enable the extension into php installation like this:
#cd /usr/local/etc/php/ #cat ext-30-wddx.ini extension=wddx.so
restart php-fpm if needed after this.
Now it’s possible to use www/owncloud or www/nextcloud with PHP 7.4 or PHP 8.0.