<?php /* * stupid IA for battle ship * choose by random a free column */ $in=file_get_contents('php://input'); $params=json_decode($in, TRUE); $grid=$params['grid']; $colAvailable=array(); for($i=0;$i<7;$i++){ if($grid[5][$i] == ""){ $colAvailable[]=$i; } } shuffle($colAvailable); echo $colAvailable[0]; die;