Online PHP editor | rfc for A3A4F

@ 2014-09-27T17:05:39Z

<?php

class StringHelper
{
    public function interpolate($str, array $context = [], $asIs = false)
    {
        $replace = [];
        foreach ($context as $key => $val) {
            if ($asIs) {
                $replace[$key] = $val;
            } else {
                $replace['{{' . $key . '}}'] = $val;
            }
        }
        return strtr($str, $replace);
    }
}

class CacheKeysDict
{
    protected static $stringHelper = null;

    const BOT_ACTIVITY_MESSAGES = 'bot_activity_messages';
    const PROFILE = 'profile_{{id}}';

    public static function prepareKey($key, array $context = [])
    {
        return self::getStringHelper()->interpolate($key, $context);
    }

    public static function getStringHelper()
    {
        if (is_null(self::$stringHelper)) {
            self::$stringHelper = new StringHelper;
        }
        return self::$stringHelper;
    }
}

var_dump([
    CacheKeysDict::BOT_ACTIVITY_MESSAGES,
    CacheKeysDict::prepareKey(CacheKeysDict::BOT_ACTIVITY_MESSAGES),
    CacheKeysDict::prepareKey(CacheKeysDict::PROFILE, ['id' => 503]),
]);

Output for git.master, git.master_jit, rfc.property-hooks: array(3) { [0]=> string(21) "bot_activity_messages" [1]=> string(21) "bot_activity_messages" [2]=> string(11) "profile_503" }

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