This problem has occured all of a sudden so I guess I must have done something wrong with my Symfony2 project...
Whenever I run the application in dev (I use netbeans as an IDE, don't know if it matters), if I make a modification to the code (PHP, HTML or Javascript), I will not see any change until I delete all the content of the /app/cache/dev folder !
This is obviously slowing me down a lot. How do I fix that ?
in app_dev.php I had not set debug mode to true. newbie mistake I guess.
$kernel = new AppKernel('dev', true); Well... if you have enabled an Opcache (accel) in your php.ini this could be the reason. It was the reason in my case anyway. I don't get what exactly causes this issue, but I worked out my own dirty fix. I have added a call to the opcache_reset() function on the very top of my app_dev.php file (which is located in your Symfony2 project in "web" folder).
opcache_reset(); Works for me. Hope it will work for you too.
