Memcached.php

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<?php

namespace Elgg\Cache\Config;

use Phpfastcache\Drivers\Memcached\Config;

class Memcached extends Config {
    
    public static function fromElggConfig(string $namespace, \Elgg\Config $config): ?self {
        
        if (!$config->memcache || empty($config->memcache_servers)) {
            return null;
        }
        
        $servers = [];
        foreach ($config->memcache_servers as $server) {
            $server_config = [
                'host' => '127.0.0.1',
                'port' => 11211,
                'saslUser' => false,
                'saslPassword' => false,
            ];
            
            if (array_key_exists('host', $server)) {
                // assume correct config
                $server_config = array_merge($server_config, $server);
            } else {
                // assume old config syntax
                elgg_deprecated_notice("Memcache server({$server[0]}) configuration format has been changed. Please update the configuration in elgg-config/settings.php", '4.2');
                
                $server_config['host'] = $server[0];
                $server_config['port'] = $server[1];
            }
            
            $servers[] = $server_config;
        }
        
        $opt_prefix = (string) $config->memcache_namespace_prefix;
        $opt_prefix .= $namespace;
        
        return new self([
            'servers' => $servers,
            'preventCacheSlams' => true,
            'useStaticItemCaching' => true,
            'itemDetailedDate' => true,
            'optPrefix' => $opt_prefix,
        ]);
    }
}