Update to => php 7.3

Dockerfile

-FROM php:7.2-apache
+FROM php:7.3-apache
 
 # Install modules
 RUN apt-get update \ 

conf-dev/Dockerfile

-FROM php:7.2-apache
+FROM php:7.3-apache
 
 # Install modules
 RUN apt-get update \ 

conf-dev/dev-php.ini

@@ -3,7 +3,7 @@ error_reporting=E_ALL
 date.timezone=Europe/Paris
 
 [xdebug]
-zend_extension=/usr/local/lib/php/extensions/no-debug-non-zts-20170718/xdebug.so
+zend_extension=/usr/local/lib/php/extensions/no-debug-non-zts-20180731/xdebug.so
 xdebug.remote_enable=1
 xdebug.remote_autostart=1
 xdebug.remote_port=9900