Symfony\Component\DependencyInjection\Dumper\PhpDumper::addDefaultParametersMethod PHP Method

    private function addDefaultParametersMethod()
    {
        if (!$this->container->getParameterBag()->all()) {
            return '';
        }

        $php = array();
        $dynamicPhp = array();

        foreach ($this->container->getParameterBag()->all() as $key => $value) {
            if ($key !== $resolvedKey = $this->container->resolveEnvPlaceholders($key)) {
                throw new InvalidArgumentException(sprintf('Parameter name cannot use env parameters: %s.', $resolvedKey));
            }
            $export = $this->exportParameters(array($value));
            $export = explode('0 => ', substr(rtrim($export, " )\n"), 7, -1), 2);

            if (preg_match("/\\\$this->(?:getEnv\('\w++'\)|targetDirs\[\d++\])/", $export[1])) {
                $dynamicPhp[$key] = sprintf('%scase %s: $value = %s; break;', $export[0], $this->export($key), $export[1]);
            } else {
                $php[] = sprintf('%s%s => %s,', $export[0], $this->export($key), $export[1]);
            }
        }
        $parameters = sprintf("array(\n%s\n%s)", implode("\n", $php), str_repeat(' ', 8));

        $code = '';
        if ($this->container->isFrozen()) {
            $code .= <<<'EOF'

    /**
     * {@inheritdoc}
     */
    public function getParameter($name)
    {
        $name = strtolower($name);

        if (!(isset($this->parameters[$name]) || array_key_exists($name, $this->parameters) || isset($this->loadedDynamicParameters[$name]))) {
            throw new InvalidArgumentException(sprintf('The parameter "%s" must be defined.', $name));
        }
        if (isset($this->loadedDynamicParameters[$name])) {
            return $this->loadedDynamicParameters[$name] ? $this->dynamicParameters[$name] : $this->getDynamicParameter($name);
        }

        return $this->parameters[$name];
    }

    /**
     * {@inheritdoc}
     */
    public function hasParameter($name)
    {
        $name = strtolower($name);

        return isset($this->parameters[$name]) || array_key_exists($name, $this->parameters) || isset($this->loadedDynamicParameters[$name]);
    }

    /**
     * {@inheritdoc}
     */
    public function setParameter($name, $value)
    {
        throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
    }

    /**
     * {@inheritdoc}
     */
    public function getParameterBag()
    {
        if (null === $this->parameterBag) {
            $parameters = $this->parameters;
            foreach ($this->loadedDynamicParameters as $name => $loaded) {
                $parameters[$name] = $loaded ? $this->dynamicParameters[$name] : $this->getDynamicParameter($name);
            }
            $this->parameterBag = new FrozenParameterBag($parameters);
        }

        return $this->parameterBag;
    }

EOF;
            if ('' === $this->docStar) {
                $code = str_replace('/**', '/*', $code);
            }

            if ($dynamicPhp) {
                $loadedDynamicParameters = $this->exportParameters(array_combine(array_keys($dynamicPhp), array_fill(0, count($dynamicPhp), false)), '', 8);
                $getDynamicParameter = <<<'EOF'
        switch ($name) {
%s
            default: throw new InvalidArgumentException(sprintf('The dynamic parameter "%%s" must be defined.', $name));
        }
        $this->loadedDynamicParameters[$name] = true;

        return $this->dynamicParameters[$name] = $value;
EOF;
                $getDynamicParameter = sprintf($getDynamicParameter, implode("\n", $dynamicPhp));
            } else {
                $loadedDynamicParameters = 'array()';
                $getDynamicParameter = str_repeat(' ', 8).'throw new InvalidArgumentException(sprintf(\'The dynamic parameter "%s" must be defined.\', $name));';
            }

            $code .= <<<EOF

    private \$loadedDynamicParameters = {$loadedDynamicParameters};
    private \$dynamicParameters = array();

    /*{$this->docStar}
     * Computes a dynamic parameter.
     *
     * @param string The name of the dynamic parameter to load
     *
     * @return mixed The value of the dynamic parameter
     *
     * @throws InvalidArgumentException When the dynamic parameter does not exist
     */
    private function getDynamicParameter(\$name)
    {
{$getDynamicParameter}
    }

EOF;
        } elseif ($dynamicPhp) {
            throw new RuntimeException('You cannot dump a not-frozen container with dynamic parameters.');
        }

        $code .= <<<EOF

    /*{$this->docStar}
     * Gets the default parameters.
     *
     * @return array An array of the default parameters
     */
    protected function getDefaultParameters()
    {
        return $parameters;
    }

EOF;

        return $code;
    }