<p style="box-sizing: border-box; outline: 0px; margin: 0px 0px 16px; padding: 0px; font-family: "Microsoft YaHei", "SF Pro Display", Roboto, Noto, Arial, "PingFang SC", sans-serif; font-size: 16px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-variant-ligatures: common-ligatures;">PHP取整数函数常用的四种方法：</p><p style="box-sizing: border-box; outline: 0px; margin: 0px 0px 16px; padding: 0px; font-family: "Microsoft YaHei", "SF Pro Display", Roboto, Noto, Arial, "PingFang SC", sans-serif; font-size: 16px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-variant-ligatures: common-ligatures;">1.直接取整，舍弃小数，保留整数：intval()；<br style="box-sizing: border-box; outline: 0px; margin: 0px; padding: 0px; overflow-wrap: break-word;" />2.四舍五入取整：round()；<br style="box-sizing: border-box; outline: 0px; margin: 0px; padding: 0px; overflow-wrap: break-word;" />3.向上取整，有小数就加1：ceil()；<br style="box-sizing: border-box; outline: 0px; margin: 0px; padding: 0px; overflow-wrap: break-word;" />4.向下取整：floor()。</p>