Alter table operation can be a very long task, depending on your database. It's often that database administrator wait too run these operations and do it late in the night to avoid disturbing user. But solutions exist to allow alter table without locking table, pt-online-schema-change from Percona Toolkit is one of these solutions.

Today, we use more and more external libraries in our projects. Though it saves us time, it is possible that we may introduce security vulnerabilities via these libraries. Controlling this is unfortunately not systematic, and particularly seldom automated. I'll show you in this post how to automate this control using SensioLabs' tool and Jenkins.

This article talks about the Config component of symfony which allows to semantically expose a configuration and validate it. To often break my teeth on it, I decided to compile here some useful tips that do not appear in the official documentation.

Sometimes the processing of a message causes an error. In this case, it is common to move this message to another queue to try to process it later. All this, can be automated in RabbitMQ with the DLX / DLK option and the application of a TTL. But be careful not to create an infinite loop of attempted treatment, in this article I will introduce x-death header to control the number of retries.

RabbitMQ is fast, sometimes a bit too much compared to the rest of the infrastructure. A database replication delay can crash the processing of a message. I show you how I handle this problem and use the dead letter exchange and dead letter routing key options to delay the processing of a message.

Following the article on the manipulation of dates in SQL, I realized that, in fact, the manipulation of date in php was not so simple and known as that. There are many functions on dates in PHP and I still find a lot of code that gets confused trying to calculate dates with mktime, manipulating timestamps. While a very practical class exists: DateTime. So it is she, and her companions, that I will present.

Most sites use cookies. Whether for tracking or persisting data, unfortunately good security practices are not always apply. In this article I will present the different options available in PHP and how to implement them with Symfony.

Manipulating dates in a programming language (PHP, Java ....) is simple and known to all. But what about in the MySQL database? In this article I present what it is possible to do in SQL queries: operation, date interval ...

I use very little Vim editor to develop, but when I have my PHP code in black and white is not very practical. There are several solutions to color code (PHP, javascript .....) in Vim, here is an easy to install.

Imagine is an object-oriented PHP 5 library for manipulating images in an object context. It is a layer of abstraction to the various image manipulation engines such as GD or Imagick.