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Example code of ctw/ctw-middleware

Informations about the package ctw-middleware

Package "ctw/ctw-middleware"

Latest Stable Version GitHub Actions

Abstract base class providing shared functionality for the ctw/ctw-middleware-* PSR-15 middleware packages.

Introduction

Why This Library Exists

Modern PHP applications built on frameworks like Mezzio leverage PSR-15 middleware for request/response processing. When building multiple middleware components that share common functionality, duplicating code across packages leads to maintenance burden and inconsistencies.

This library provides a centralized AbstractMiddleware base class that:

Problems This Library Solves

  1. Code duplication: Without a shared base, each middleware would implement its own HTML detection and statistics logic
  2. Inconsistent behavior: Different implementations of content-type checking could lead to subtle bugs
  3. Maintenance overhead: Bug fixes or improvements would need to be replicated across multiple packages
  4. Missing PSR compliance: Ensures all derived middleware properly implements MiddlewareInterface

Where to Use This Library

Design Goals

  1. Minimal footprint: Only essential shared functionality, no bloat
  2. PSR-15 compliant: Implements the standard middleware interface
  3. Type-safe: Full declare(strict_types=1) support
  4. Extensible: Abstract class designed to be extended, not instantiated directly
  5. Zero configuration: Works out of the box with sensible defaults

Requirements

Installation

Install by adding the package as a Composer requirement:

Usage Examples

Extending AbstractMiddleware

HTML Detection

The containsHtml() method checks for text/html or application/xhtml in the Content-Type header:

Transformation Statistics

For middleware that transforms HTML (minification, beautification), use getSuffixStatistics():

All versions of ctw-middleware with dependencies

PHP Build Version
Package Version
Requires php Version ^8.5
ext-mbstring Version *
psr/http-message Version ^1.1 || ^2.0
psr/http-server-middleware Version ^1.0
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