Online PHP editor | output 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 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: array(3) { [0]=> string(21) "bot_activity_messages" [1]=> string(21) "bot_activity_messages" [2]=> string(11) "profile_503" }
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/A3A4F on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/A3A4F on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/A3A4F on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/A3A4F on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/A3A4F on line 5
Process exited with code 255.

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