Implementing events with the bitcoind notifications using PHP Bitcoind has 3 methods 


blocknotify=cmd
walletnotify=cmd
alertnotify=cmd


I understand that these 3 command line parameters needs to be used for get notifications from bitcoin daemon. Could someone suggest how it needs to be integrated or communicate with PHP application.
I would recommend that you use blocknotify to execute a CLI PHP script. The script would then use PHP JSON-RPC to call listsinceblock to get the transactions that occurred in the latest block and put them in a MySQL database.