Turn on _profiler in server

Symfony

cut from app/config/config_dev.yml and paste to app/config/config.yml
framework:
    ...
    ...
    profiler: { only_exceptions: false }

web_profiler:
    toolbar: false
    intercept_redirects: false
cut from app/config/routing_dev.php and paste to app/config/routing.php
_wdt:
    resource: "@WebProfilerBundle/Resources/config/routing/wdt.xml"
    prefix:   /_wdt

_profiler:
    resource: "@WebProfilerBundle/Resources/config/routing/profiler.xml"
    prefix:   /_profiler



Edit app/AppKernel.php
       $bundles = array(
            ...
            ...
            new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle(),
        );

        if (in_array($this->getEnvironment(), array('dev', 'test'))) {
            ...
            ...
            //$bundles[] = new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle();
            ...
            ...
        }
        
        
export SYMFONY_ENV=prod
composer install --no-dev --optimize-autoloader
sudo rm -rf app/cache/*