README

This project is an example of how to implement a product filter in PHP using the criteria method. The code retrieves data from a fake product API and filters it according to the parameters provided in the URL.

Description

The project consists of a PHP class FilterWithCriteria that filters product data based on various criteria such as sorting, filtering by value, and limiting the number of results.

Features

• Filter products based on parameters provided in the URL.
• Sort products by specified fields in ascending or descending order.
• Limit the number of results and apply an offset.

Usage

To use this library, you need to include the FilterWithCriteria.php file in your project and create an instance of the FilterWithCriteria class. You can then call the search method with the data and parameters to filter the products.

Example URL

http://localhost/index.php?query[orderBy]=code&query[order]=asc&query[limit]=10&query[offset]=0&query[param]=price&query[value]=10&query[operator]=greater

Parameters

• orderBy: The field by which the data should be ordered.
• order: The order direction (asc for ascending, desc for descending).
• limit: The maximum number of results to return.
• offset: The number of results to skip before starting to collect the result set.
• param: The field to filter by.
• value: The value to filter by.
• operator: The operator to use for filtering (equals, between, greater, less).

Code Overview

Class: FilterWithCriteria

Methods

• search($data = [], $params = []): Handles the main logic of retrieving and filtering the products, and returns the response as a JSON string.
• filter($data, $params): Filters an array of data based on specified parameters such as sorting, filtering by value, and limiting the number of results.
• get_params($params): Extracts and returns specific parameters from an array input.