Rakesh Jesadiya

Many times we need to clear cache programmatically or using an external script, Using below code snippet we can clear of flush cache programmatically,

<?php
namespace Rbj\Cache\Block;

class CacheClear extends \Magento\Framework\View\Element\Template
{
    public function __construct(
        \Magento\Framework\View\Element\Template\Context $context,
        \Magento\Framework\App\Cache\Frontend\Pool $cacheFrontendPool,
        \Magento\Framework\App\Cache\TypeListInterface $cacheTypeList,
        array $data = []
    ) {
        $this->_cacheFrontendPool = $cacheFrontendPool;
        $this->_cacheTypeList = $cacheTypeList;
        parent::__construct($context, $data);
    }

     /* Using Product id */
    public function cacheClear()
    {
        /* get all types of cache in system */
        $allTypes = array_keys($this->_cacheTypeList->getTypes());

        /* Clean cached data for specific cache type */
        foreach ($allTypes as $type) {
            $this->_cacheTypeList->cleanType($type);
        }

        /* flushed the Entire cache storage from system, Works like Flush Cache Storage button click on System -> Cache Management */
        foreach ($this->_cacheFrontendPool as $cacheFrontend) {
            $cacheFrontend->getBackend()->clean();
        }
    }
}

Call function like below,
$productStockById = $block->cacheClear();

Get the list of all cache type by just below way,

$allTypes = array_keys($this->_cacheTypeList->getTypes());

Result like below type of all cache,

List of cache types:
array('config','layout','block_html','collections','reflection','db_ddl',
            'eav', 'customer_notification','config_integration','config_integration_api','full_page', 'translate', 'config_webservice');

If you want to flushAll cache, Use below methods,

foreach ($this->_cacheFrontendPool as $cacheFrontend) {
    $cacheFrontend->getBackend()->clean();
}