Update README for the version of PHP
Update README for the version of PHP

issei-m/symfony1-1,filipc/symfony1,ngscz/symfony1,MDrollette/symfony1,augustinmerle/symfony1,onceit/symfony1,Recras/symfony1,rock-symphony/rock-symphony,rock-symphony/rock-symphony,onceit/symfony1,filipc/symfony1,simoncast/symfony1,ngscz/symfony1,simoncast/symfony1,augustinmerle/symfony1,Recras/symfony1,MDrollette/symfony1,issei-m/symfony1-1,onceit/symfony1,augustinmerle/symfony1,filipc/symfony1,ngscz/symfony1,Recras/symfony1,issei-m/symfony1-1,simoncast/symfony1,rock-symphony/rock-symphony,MDrollette/symfony1