• 5.5.38, 5.5, latest * (5.5/Dockerfile) *
• 5.5.38-alpine, 5.5-alpine * (5.5/alpine/Dockerfile) *
• 5.5.38-apache, 5.5-apache * (5.5/apache/Dockerfile) *
• 5.5.38-fpm, 5.5-fpm * (5.5/fpm/Dockerfile) *
• 5.5.38-fpm-alpine, 5.5-fpm-alpine * (5.5/fpm/alpine/Dockerfile) *
• 5.5.38-zts, 5.5-zts * (5.5/zts/Dockerfile) *
• 5.5.38-zts-alpine, 5.5-zts-alpine * (5.5/zts/alpine/Dockerfile) *

Pull directly from the official PHP repository library/php