<?php

/**
 * @file
 *
 * @package In2pire
 * @subpackage MemcachedCli
 * @author Nhat Tran <nhat.tran@inspire.vn>
 */

namespace In2pire\Memcached\Cli;

class Application extends \In2pire\Cli\CliApplication
{
    /**
     * @inheritdoc
     */
    public function boot()
    {
        if ($this->booted) {
            // Already booted.
            return $this;
        }

        // Boot parent.
        parent::boot();

        // Check memcached extension.
        if (!extension_loaded('memcached')) {
            $this->response->writeln('<error>Could not found memcached extension<error>');
            return false;
        }

        $description = $this->runner->getDescription();

        if (!empty($description)) {
            $description .= "\n\n";
        }

        $description .= '<comment>igbinary support</comment>  ' . (\Memcached::HAVE_IGBINARY ? 'yes' : 'no') . "\n";
        $description .= '<comment>json support</comment>      ' . (\Memcached::HAVE_JSON ? 'yes' : 'no');

        $this->runner->setDescription($description);

        return $this;
    }
}

<?php

/**
 * @file
 *
 * @package In2pire
 * @subpackage MemcachedCli
 * @author Nhat Tran <nhat.tran@inspire.vn>
 */

namespace In2pire\Memcached\Cli;

class Application extends \In2pire\Cli\CliApplication
{
    /**
     * @inheritdoc
     */
    public function boot()
    {
        if ($this->booted) {
            // Already booted.
            return $this;
        }

        // Boot parent.
        parent::boot();

        // Check memcached extension.
        if (!extension_loaded('memcached')) {
            $this->response->writeln('<error>Could not found memcached extension<error>');
            return false;
        }

        return $this;
    }
}

--- 
+++ 
@@ -31,6 +31,17 @@
             return false;
         }
 
+        $description = $this->runner->getDescription();
+
+        if (!empty($description)) {
+            $description .= "\n\n";
+        }
+
+        $description .= '<comment>igbinary support</comment>  ' . (\Memcached::HAVE_IGBINARY ? 'yes' : 'no') . "\n";
+        $description .= '<comment>json support</comment>      ' . (\Memcached::HAVE_JSON ? 'yes' : 'no');
+
+        $this->runner->setDescription($description);
+
         return $this;
     }
 }
Add more information to application description