[CakePHP4]Cacheを使ってページ表示速度を高速化する方法

'Cache' => [
    'default' => [
        'className' => 'File',
        'path' => CACHE,
        ...
    ],
    // 他のキャッシュ設定
],

use Cake\Cache\Cache;

$data = ["name" => "John", "age" => 30];
Cache::write('my_key', $data);

$data = Cache::read('my_key');

Cache::delete('my_key');

use Cake\Cache\Cache;

$results = Cache::remember('my_select_query_result', function () {
    // 実際のクエリを実行
    $results = $this->MyModel->find('all')->toArray();

    // クエリの結果をキャッシュに保存
    Cache::write($cacheKey, $results);
});

return $results;

use Cake\ORM\TableRegistry;

$articles = TableRegistry::getTableLocator()->get('Articles');
$query = $articles->find('all');

$cachedResults = $query->cache('my_articles_key', '+1 hours')->all();

use Cake\Cache\Cache;
use Cake\ORM\Query;

/**
 *
 * @param Query $query
 * @param array $options
 * @return $this
 */
public function findCachedEntity(Query $query, array $options)
{
    return $query->cache(function ($q) {
        return $this->getTable() . "_data_" . md5(
            serialize($q->sql()) . serialize($q->getValueBinder()->bindings())
        );
    }, 'entities')
        ->counter(function ($q) {
            return Cache::remember($this->getTable() . "_count_" . md5(serialize($q->sql()) . serialize($q->getValueBinder()->bindings())), function ()  use ($q) {
                return $q->count();
            });
        }, 'entities');
}

$article = $this->Articles->find('cachedEntity')->firstOrFail();

public $helpers = ['Cache'];

// キャッシュの開始
$this->Cache->start('unique_cache_key');

// キャッシュする内容
echo $this->Html->link('Example', ['controller' => 'examples', 'action' => 'index']);

// キャッシュの終了
$this->Cache->end();

echo $this->cell('Example::display', [], ['cache' => [
    'key' => 'unique_cell_cache_key',
    'duration' => '+1 hours'
]]);

echo $this->element('example_element', [], ['cache' => [
    'key' => 'unique_element_cache_key',
    'duration' => '+1 hours'
]]);

# 指定したキーのみ削除
bin/cake cache clear [config_name]

# すべてのキャッシュ削除
bin/cake cache clear_all