#29 - PHP Simple Cache Class

Date: 2018-10-06 12:00 - PHP

Simple class for caching values in files.

<?php
define('CACHE_FOLDER', 'cache');

class Cache {

	public static function hasCacheFor($name, $maxSecondsOld) {
		$cacheFile = static::getFilename($name);
		return file_exists($cacheFile) && time() - filemtime($cacheFile) <= $maxSecondsOld;
	}

	public static function get($name) {
		$cacheFile = static::getFilename($name);
		if(file_exists($cacheFile))
			return unserialize(file_get_contents($cacheFile));
		return null;
	}

	public static function set($name, $value) {
		file_put_contents(static::getFilename($name), serialize($value));
	}

	private static function getFilename($name) {
		return './' . CACHE_FOLDER . '/' . $name;
	}
}

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