It’s possible to generate a URL from within a Twig extension in a Symfony2 application. To do this, you need to have access to the Router. If you have a custom Twig extension, this means that you’ll need to inject the router to the extension. Thanks to the Dependency Injection this is very easy to [...]
How to fix “Kernel pid terminated” when starting Rabbitmq
Today we installed RabbitMQ in a brand new server running Scientific Linux (SL) 6.2. SL is a relatively new Linux distribution based on RedHat Enterprise Linux, similar to CentOS, that lately has been gaining a lot of popularity. The RabbitMQ installation on RHEL based servers is quite easy and well documented. So it was a surprise when RabbitMQ [...]
How to create a Cache Warmer in Symfony2
By Ismael Ambrosi @iambrosi The cache is a very important part of your Symfony application as it helps your web server to perform better by not executing unnecessary code on every request, this is especially true if your server is running with limited resources. Cache warming allows you to cache specific data in your application through [...]
Configuring your Apache web server for HTML5 video formats
HTML5 is a new set of standards that allows you to embed videos that are viewable across multiple platforms and devices. If this is your first time embedding video on your webpage using HTML5, you will notice that the <video> tag now supports multiple video formats. HTML5 video uses the MP4, WebM and Ogg formats. [...]
Best practices to send out emails with your server
Spam filters are great, but often they do too good a job and catch legitimate emails. This is especially true when sending emails from a server using Sendmail or Swiftmailer. At ServerGrove we have become quite good at debugging this problem and we are compiling a list of best practices for sending out emails from [...]




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