Here you can find an example implementation of a Four In A Line Console Client. You need the curl functions/extension for this.
You can put your own PHP player-class into the folder (see Player1.php) and then start the Game.
Usage: php startConnectFourAgainstServer.php Player-Filename [width] [height] [enemyId]
A simple example with Player1.php playing against EnemyId 1 on a 7*6 grid would be
# php startConnectFourAgainstServer.php Player1.php 7 6 1
If you start the Client without any of the optional parameters a 7*6 game will start and you will be asked for the enemy:
# php startConnectFourAgainstServer.php Player1.php Starting ConnectFourAgainstServer... ============================== Found player class 'Player1' in file 'Player1.php'. Please choose your enemy: 1 Rudi Random 2 Philipp Percent 3 Andi Avoid 4 Michael Kliewe EnemyId: