Response - PHP API Response Handler

Overview

Response is a lightweight PHP library designed to streamline API response handling. It follows a singleton-based pattern to store and retrieve results, errors, and user input efficiently. The package is PSR-4 compliant and fully compatible with PHP 7.2+ and PHP 8.2.

Key Features

• ✅ Singleton pattern to prevent redundant object creation.
• ✅ Structured response handling for JSON and array outputs.
• ✅ Collect API results & errors dynamically.
• ✅ Retrieve user input from $_GET, $_POST, and JSON payloads.
• ✅ Flexible data retrieval (JSON, array, collection format).
• ✅ Works with Laravel, Symfony, CodeIgniter, WordPress, and Core PHP.

---

Installation

Install via Composer

You can install this package using Composer:

composer require uxmansarwar/response

Manual Installation

Alternatively, clone this repository and include it in your project:

git clone https://github.com/uxmansarwar/Response.git

Then, include the autoloader:

require 'vendor/autoload.php';

---

Usage Examples

1. Initializing the Response Handler

use UxmanSarwar\Response;

Response::init();

2. Storing Results

Response::result("User created successfully");
Response::result(["id" => 1, "name" => "John Doe"]);

3. Handling Errors

Response::error("Invalid API request");
Response::error("Failed to connect to the database");

4. Retrieving Response Data

JSON Output:

echo Response::json();

Example Output:

{
    "result": [
        "User created successfully",
        { "id": 1, "name": "John Doe" }
    ],
    "error": [
        "Invalid API request",
        "Failed to connect to the database"
    ]
}

Array Output:

$response_array = Response::collection();
print_r($response_array);

---

Advanced Features

5. Grouping Responses with a Key

Response::key("user")->result(["id" => 2, "name" => "Jane Doe"]);
echo Response::json();

6. Include User Input in Response

Response::input(true);
echo Response::json();

If a request is made with:

GET /api.php?id=10&name=Alice

The output will include:

"input": {
    "id": "10",
    "name": "Alice"
}

7. Custom Error & Result Keys

You can define custom keys for results and errors:

Response::key("dns");

---

Use Case Example: API Response Handling

Response::init();

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    Response::error("Only POST requests are allowed");
} else {
    $data = Response::$_INPUT;
    if (!isset($data['username']) || empty($data['username'])) {
        Response::error("Username is required");
    } else {
        Response::result("User registered successfully");
    }
}

echo Response::json();

---

Why Use This Package?

✅ For Laravel & Symfony Developers: Use it as a service-based response handler.

✅ For WordPress Developers: Improve structured AJAX responses.

✅ For REST API Development: Optimize API response handling with minimal effort.

✅ For Microservices: Centralize error handling and response formatting.

---

Testing the Package

To install and run tests:

composer install
vendor/bin/phpstan analyse src --level=max
vendor/bin/pest