Also add ffi for newer vips implementations

Author: baschny

Dockerfile

@@ -38,6 +38,7 @@ RUN <<EOT bash
       "bz2"
       "calendar"
       "exif"
+      "ffi"
       "gd"
       "gettext"
       "imagick"

README.md

@@ -54,6 +54,7 @@ This image includes the following additional extensions:
 * bz2
 * calendar
 * exif
+* ffi
 * gd
 * gettext
 * igbinary

example-app/.env.docker

@@ -13,7 +13,7 @@
 XDEBUG_MODE=debug
 
 # If you only want a specific subset of extensions enabled. This is the default set of all:
-#PHP_EXTENSIONS=apcu,bcmath,bz2,calendar,exif,gd,gettext,imagick,intl,mysqli,opcache,pcntl,pdo_mysql,redis,shmop,soap,sockets,sysvmsg,sysvsem,sysvshm,uuid,vips,xdebug,yaml,zip
+#PHP_EXTENSIONS=apcu,bcmath,bz2,calendar,exif,ffi,gd,gettext,imagick,intl,mysqli,opcache,pcntl,pdo_mysql,redis,shmop,soap,sockets,sysvmsg,sysvsem,sysvshm,uuid,vips,xdebug,yaml,zip
 # Baseline, minimal set of extensions that are required for most applications
 #PHP_EXTENSIONS=apcu,bcmath,bz2,calendar,exif,gd,gettext,intl,mysqli,opcache,pdo_mysql,zip,yaml