The Paris Open Source Summit, the premier European event centered on the Free & Open Source sector, is the result of the merger of two iconic Open Source events: Linux Solutions and the Open World Forum. Paris Open Source Summit attends the 18th and the 19th november 2015 at The Docks of Paris. The event strives […]
31
Oct
Oct
PHP Worl 2015 brings together the entire world of PHP into one location together. The idea is to bring everyone together to learn from each other and make the greater PHP community stronger for it. Damien Seguy, CTO of Exakat, will present the “Error messages in PHP 7” session based on our […]
20
Oct
Oct
PHP 7 is probably the ‘the easiest upgrade yet‘. After having checked that the old PHP 5.x is lintable with PHP 7, the next challenge is to read the ‘ backward incompatible changes‘ and see if it applies to the legacy code. The list is not long, and a quick text search will lead us […]
06
Oct
Oct
Heredoc PHP Heredoc PHP syntax is a way to write large bloc of text inside PHP, without the classic single quote, double quotes delimiters. It relies on <<< and a token that will also mark the end of the string. <?php $string = <<<STRING $x elephpants STRING ; ?> Heredoc has also the Nowdoc alternative, that […]
14
Sep
Sep
Before coding, we all want to produce clean, smart and efficient code. During coding, we keep the eye on the target, and when we’re done, the result is usually not what we expected. There is always room for improvement. Improvement may come in various flavors: corner cutting, PHP specific gotcha, migration or even old habits that […]
31
Aug
Aug
Static analysis refers to the review of code without executing it. Such review may be done as a phase of a coding project, or naturally occurring when the code is handed to a new programmer (That new programmer may also be yourself, six months later). In both case, the goal is to spot defects by […]
21
Aug
Aug
Install Gremlin for Neo4j 2.2 At the heart of the Exakat engine, we use Gremlin and Neo4j. Neo4j is the graph database, and Gremlin is the graph traversal language. Until today (2015, August 20th), Neo4j 2.2 had no working plug-in for Gremlin, which made us use the latest neo4j 2.1.8, but miss all the effort […]
Manual Code Review used to be The established standard is one write the code, and another one review it. This is safe and sound: no one can both be judge and be judged. Times are changing and they won’t stay long that way. Manual code reviews are definitely good for team building : obviously, experienced developer […]
06
Aug
Aug
The art of PHP callback PHP callback are functions that may be called dynamically by PHP. They are used by native functions such as array_map, usort, preg_replace_callback, etc. Here is a reminder of the various ways to create a callback function in PHP, and use it with the native functions. String functions Strings are the […]
07
Jul
Jul
When come the time for preparing a new server, there is always the dreaded question of configuration. Which directives have to be configured in php.ini. Certainly, we have (and love) the phpinfo() function, that displays the current configuration of a server. It is so useful to check that one directive has the good value or […]