mCrypt not present after Ubuntu upgrade to 13.10

Question

After I have upgraded my system from Ubuntu 13.04 to 13.10 several problems have occurred with apache, mysql and php configurations.

I solved most of them but I can

Answer 1

I had the same problem with PHP 5.5.14 running on Mac OS X Yosemite. I was trying to install Laravel 5.0. And when I tried to create a new project I got an error like below (even when I tried to start the laravel server with php artisan serve

Alejandros-MacBook-Pro:Documents Lexynux$ laravel new blog
Crafting application...
PHP Notice:  Use of undefined constant MCRYPT_RIJNDAEL_128 - assumed 'MCRYPT_RIJNDAEL_128' in /Library/WebServer/Documents/blog/config/app.php on line 83
PHP Notice:  Use of undefined constant MCRYPT_RIJNDAEL_128 - assumed 'MCRYPT_RIJNDAEL_128' in /Library/WebServer/Documents/blog/config/app.php on line 83
Generating optimized class loader
Compiling common classes
Compiling views
PHP Notice:  Use of undefined constant MCRYPT_RIJNDAEL_128 - assumed 'MCRYPT_RIJNDAEL_128' in /Library/WebServer/Documents/blog/config/app.php on line 83
Application key [CCOPocoMjnJTx4AFXk64wqyTKyo3BlHq] set successfully.
Application ready! Build something amazing.
Alejandros-MacBook-Pro:Documents Lexynux$ 

So I just added the line below at the end of my php.ini file with the nano editor:

extension=mcrypt.so
sudo nano /etc/php.ini

Finally just restart the Terminal and restart the laravel app server with

php artisan serve

And it works fine!