Online PHP editor | output for 4e0sg

@ 2014-09-27T17:04:11Z

<?php

class String extends 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($id, array $context = [])
    {
        $key = constant("CacheKeysDict::{$id}");
        return self::getStringHelper()->interpolate($key, $context);
    }

    public static function getStringHelper()
    {
        if (is_null(self::$stringHelper)) {
            self::$stringHelper = new \common\helpers\String;
        }
        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 - 5.4.32, 5.5.0 - 5.5.16, 5.6.0 - 5.6.1: Fatal error: Class 'StringHelper' not found in /in/4e0sg on line 4
Process exited with code 255.
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/4e0sg 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/4e0sg 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/4e0sg 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/4e0sg 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/4e0sg on line 5
Process exited with code 255.

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