optimole-wp / inc / attachment_cache.php

attachment_cache.php in Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization 3.11.0, at inc/attachment_cache.php

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1	<?php
2
3	/**
4	* Class Optml_Attachment_Cache.
5	*/
6	class Optml_Attachment_Cache {
7	const CACHE_GROUP = 'optml_attachment_ids';
8
9	/**
10	* Get the cached attachment ID.
11	*
12	* @param string $url the URL of the attachment.
13	*
14	* @return bool\|mixed
15	*/
16	public static function get_cached_attachment_id( $url ) {
17	$cache_key = self::get_cache_key( $url );
18
19	return wp_cache_get( $cache_key, self::CACHE_GROUP );
20	}
21
22	/**
23	* Set the cached attachment ID.
24	*
25	* @param string $url the URL of the attachment.
26	* @param int $id the attachment ID.
27	*
28	* @return void
29	*/
30	public static function set_cached_attachment_id( $url, $id ) {
31	$cache_key = self::get_cache_key( $url );
32
33	wp_cache_set( $cache_key, $id, self::CACHE_GROUP, DAY_IN_SECONDS );
34	}
35
36	/**
37	* Generate cache key for URL.
38	*
39	* @param string $url the URL to generate the cache key for.
40	*
41	* @return string
42	*/
43	private static function get_cache_key( $url ) {
44	$url = strtok( $url, '?' );
45
46	return 'attachment_id_' . crc32( $url );
47	}
48	}
49