Silex Alternatives

aphiria

A simple, extensible REST API framework for PHP

Elgg

A social networking engine in PHP/MySQL

Lumen

Discontinued The Laravel Lumen Framework.

Slim

Slim Framework 4 Skeleton Application

Siler

Discontinued ⚡ Flat-files and plain-old PHP functions rockin'on as a set of general purpose high-level abstractions.

Proton

Inferno

Discontinued [WIP] The Inferno framework (by infernophp)

Bullet PHP

A resource-oriented micro PHP framework

dispatch

a tiny library for quick and easy PHP apps (by noodlehaus)

DemirApp Minimal PHP Framework

Simple and minimal yet another PHP 7 Framework (by yidemir)

velox

The minimal PHP micro-framework. (by MarwanAlsoltany)

boneframework

Bone Framework

Wolff

🐺 Lightweight and easy to use framework for building web apps. (by Usbac)

Liten

Liten is a small and simple micro framework which can be used to build restful services and apps.

huge

Simple user-authentication solution, embedded into a small framework.

limonade

a PHP micro-framework

PHPMicroFramework-AppDemo

PHPMicroFramework

A simple PHP micro-framework.

sledgehammer

Sledgehammer Framework (by sledgehammer)

XoopsCore

Core Framework for next version of XOOPS CMS: 2.6.0