[BUG] PHP 5.5 crashes when trying to extend the Volt compiller with function or filter

[ghost]

Hi Phalcon Team,

When I'm trying to register a Function or Filter to the Volt compiler under PHP 5.5 - it crashes with a blank screen (this appeared since version 1.2.6 I think and is still present in 1.3.0 and 1.3.1).

Here are some examples that are working under PHP 5.4 but not under PHP 5.5, for the last tests I used the Vocuro app, where the Volt compiler functions/filter are added in the services.php and it became to looks:

$di->set('view', function() use ($config) {

    $view = new View();

    $view->setViewsDir($config->application->viewsDir);

    $view->registerEngines(array(
        '.volt' => function($view, $di) use ($config) {

            $volt = new VoltEngine($view, $di);
            $compiler = $volt->getCompiler();
            $compiler->addFunction('shuffle', 'str_shuffle');// it's OK
            $compiler->addFilter('shuffle', 'str_shuffle');// it's OK

            $compiler->addFilter('int', function($resolvedArgs, $exprArgs) {
                return 'intval(' . $resolvedArgs . ')';
            });// not working

            $compiler->addFunction('int', function($resolvedArgs, $exprArgs) {
                return 'intval(' . $resolvedArgs . ')';
            });// not working

            $compiler->addFunction('someFunction', function($resolvedArgs, $exprArgs) {
                return 'Widgets::someFunction(' . $resolvedArgs . ')';
            });// not working

            $compiler->addFilter('someFilter', function($resolvedArgs, $exprArgs) {
                return 'Widgets::someFilter(' . $resolvedArgs . ')';
            });// not working

            $volt->setOptions(array(
                'compiledPath' => $config->application->cacheDir . 'volt/',
                'compiledSeparator' => '_'
            ));

            return $volt;
        }
    ));

    return $view;
}, true);

// here is also the Widgets class
class Widgets {
    public static function someFunction() {
        return 'I\'m a working Function';
    }

    public static function someFilter() {
        return 'I\'m a working Filter';
    }
}

Now in the main layout - app/views/index.volt after the {{ content() }} I put:

{{ 'test'|shuffle }} OK for both PHP 5.4/5.5
{{ shuffle('test') }} OK for both PHP 5.4/5.5

{{ '10ab'|int }} NOT OK under PHP 5.5
{{ int('10ab')}} NOT OK under PHP 5.5
{{ someFunction('test') }} NOT OK under PHP 5.5
{{ 'test'|someFilter }} NOT OK under PHP 5.5

This is under Windows, so I can't build it in debug mode.

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[ghost]

Hi, Like in #2198 when I stopped the xdebug extension, the closure filters/functions started to work as expected. So where/how we should address this issue?

[oh-ren]

I also ran into this issue.. Forum thread: http://forum.phalconphp.com/discussion/2204/xdebug-empty-reply-from-server

[phalcon]

Added a pull request on xdebug to fix the problem: xdebug/xdebug#120

[oh-ren]

Awesome, much appreciated!

[oh-ren]

Update: the author of Xdebug believes he's got a fix, which, according to the related Mantis issues, will ship with v2.2.6

xdebug/xdebug#120 (comment)