PHP大转盘抽奖

奖品设置

$prizes = array( 0 => array( "id" => 0, //中奖id "name" => "谢谢参与", //奖品名称 "count" => "100", //库存 ), 1 => array( "id" => 1, "name" => "罗浮山门票", "count" => "40", ), 2 => array( "id" => 2, "name" => "罗浮山嘉宝田温泉体验券", "count" => "40", ), 3 => array( "id" => 3, "name" => "精美旅游书籍《山水酿惠州》", "count" => "40", ), 4 => array( "id" => 4, "name" => "碧海湾漂流门票", "count" => "40", ), 5 => array( "id" => 5, "name" => "南昆山门票", "count" => "40", ), 6 => array( "id" => 6, "name" => "云顶温泉精美礼品", "count" => "40", ), );

获取中奖概率，若是库存为0的则不计算