if (empty($_goods['g_name'])) {
ym_manage("goods.php?act=modify&id={$id}", '商品名称不能为空！');
}
if (empty($_goods['g_name']) > 40) {
ym_manage("goods.php?act=modify&id={$id}", '商品名称过长，不能超过20个字符');
}
//价格验证
if (!is_numeric($_goods['g_price'])) {
ym_manage("goods.php?act=modify&id={$id}", '商品价格必须是数值！');
}
//库存验证
if (!is_numeric($_goods['g_inv']) || $_goods['g_inv'] < 0) {
ym_manage("goods.php?act=modify&id={$id}", '商品库存必须是大于0的整数！');
}
//商品分类验证
if ($_goods['c_id'] == 0) {
ym_manage("goods.php?act=modify&id={$id}", '必须选择所属商品分类！');
}
//合理性验证
$goods = new Goods();
//var_dump($_goods['g_code']);exit;
// var_dump($_goods['g_price']);exit;
//判断插入数据库
if ($goods->updateGoodsById($id, $_goods)) {
//成功：
ym_manage("goods.php", '商品修改成功！');
} else {
//失败
ym_manage("goods.php?act=modify&id={$id}", '商品修改失败！');
}
}