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PHP Academy · Lesson

Redis as a PHP Cache Backend

Connect PHP to Redis and cache query results and computed data.

What is Redis?

Redis is an in-memory data structure server. It is the most popular caching backend for PHP applications due to its speed, rich data types, and built-in TTL support.

Installing the PHP Redis Extension

Install either the phpredis C extension (fastest) or the pure-PHP predis library.

# Predis via Composer:
$ composer require predis/predis

# Or install phpredis extension:
$ pecl install redis

All lessons in this course

  1. Why Caching Matters in PHP
  2. Redis as a PHP Cache Backend
  3. Memcached for Session and Object Caching
  4. Cache Invalidation Patterns
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