use working xdebug

see https://xdebug.org/updates.php and https://bugs.xdebug.org/bug_view_page.php?bug_id=00001519 for more information

Author: OskarStark

7.3/Dockerfile

@@ -48,7 +48,7 @@ RUN apt-get update && apt-get install libldap2-dev -y && \
 RUN docker-php-ext-configure pcntl --enable-pcntl \
     && docker-php-ext-install pcntl
 
-RUN pecl install xdebug-2.6.0
+RUN pecl install xdebug-2.7.0beta1
 RUN echo "zend_extension=`php -i | grep ^extension_dir | cut -f 3 -d ' '`/xdebug.so" >> /usr/local/etc/php/conf.d/xdebug.ini
 
 RUN docker-php-ext-install soap

README.md

@@ -21,7 +21,7 @@ This is a docker php fpm image, based on the official php fpm image. It has the
   - pdo_mysql (5.0.11-dev)
   - pdo_pgsql
   - pgsql
-  - xdebug (2.4.0 for php <5.5, 2.5.5 for php <7.0, 2.6.1 for php >=7.0)
+  - xdebug (2.4.0 for php <5.5, 2.5.5 for php <7.0, 2.6.1 for php 7.0, 7.1 & 7.2, 2.7.0beta1 for php 7.3)
   - opcache (for php >=5.5, since it's replacing apc since 5.5)
   - apc (for php <5.5, since it's replaced by opcache since 5.5)
   - pcntl