Fixes php.ini editions upon container start

This commit adapts the run.sh to the new version of the
mattrayner/lamp:latest-1604 image that has updated PHP to version 7,
breaking the php.ini edition in the run.sh.

run.sh

@@ -2,9 +2,17 @@
 
 VOLUME_HOME="/var/lib/mysql"
 
-sed -ri -e "s/^upload_max_filesize.*/upload_max_filesize = ${PHP_UPLOAD_MAX_FILESIZE}/" \
+for php_config_dir in /etc/php/*; do
+  php_ini=$php_config_dir/apache2/php.ini
+
+  if [ -f "$php_ini" ]; then
+  sed -ri -e "s/^upload_max_filesize.*/upload_max_filesize = ${PHP_UPLOAD_MAX_FILESIZE}/" \
     -e "s/^post_max_size.*/post_max_size = ${PHP_POST_MAX_SIZE}/" \
-    -e "s/^display_errors.*/display_errors = ${PHP_DISPLAY_ERRORS}/" /etc/php/5.6/apache2/php.ini
+    -e "s/^display_errors.*/display_errors = ${PHP_DISPLAY_ERRORS}/" $php_ini
+  fi
+done
+
+
 
 sed -i "s/export APACHE_RUN_GROUP=www-data/export APACHE_RUN_GROUP=staff/" /etc/apache2/envvars