php取整函数ceil,floor,round,intval的区别
Posted 好笑。
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了php取整函数ceil,floor,round,intval的区别相关的知识,希望对你有一定的参考价值。
ceil---进一法取整
返回大于value的下一个整数,若value有小数部分则进一位
eg:echo ceil(9.999) //10
floor---舍去法取整
返回小于value的下一个整数,若value有小数部分则舍去取整
eg:echo floor(9.999) //9
intval---对变数转成整数
eg: echo intval(4.3) //4
round---对浮点数进行四舍五入
!--5f39ae17-8c62-4a45-bc43-b32064c9388a:[{"blockId":"4981-1555729125124","blockType":"paragraph","styles":{"align":"left","indent":0,"text-indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[{"char":"c"},{"char":"e"},{"char":"i"},{"char":"l"},{"char":"-"},{"char":"-"},{"char":"-"},{"char":"进"},{"char":"一"},{"char":"法"},{"char":"取"},{"char":"整"}],"isRichText":true,"keepLineBreak":true}},{"blockId":"9763-1555729161500","blockType":"paragraph","styles":{"text-indent":1,"align":"left","indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[{"char":"返"},{"char":"回"},{"char":"大"},{"char":"于"},{"char":"v"},{"char":"a"},{"char":"l"},{"char":"u"},{"char":"e"},{"char":"的"},{"char":"下"},{"char":"一"},{"char":"个"},{"char":"整"},{"char":"数"},{"char":"，"},{"char":"若"},{"char":"v"},{"char":"a"},{"char":"l"},{"char":"u"},{"char":"e"},{"char":"有"},{"char":"小"},{"char":"数"},{"char":"部"},{"char":"分"},{"char":"则"},{"char":"进"},{"char":"一"},{"char":"位"}],"isRichText":true,"keepLineBreak":true}},{"blockId":"2357-1555729188150","blockType":"paragraph","styles":{"text-indent":1,"align":"left","indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[{"char":"e"},{"char":"g"},{"char":"："},{"char":"e"},{"char":"c"},{"char":"h"},{"char":"o"},{"char":" "},{"char":"c"},{"char":"e"},{"char":"i"},{"char":"l"},{"char":"("},{"char":"9"},{"char":"."},{"char":"9"},{"char":"9"},{"char":"9"},{"char":")"},{"char":" "},{"char":" "},{"char":" "},{"char":" "},{"char":"/"},{"char":"/"},{"char":"1"},{"char":"0"}],"isRichText":true,"keepLineBreak":true}},{"blockId":"4664-1555729209029","blockType":"paragraph","styles":{"text-indent":1,"align":"left","indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[],"isRichText":true,"keepLineBreak":true}},{"blockId":"4000-1555729209180","blockType":"paragraph","styles":{"align":"left","indent":0,"text-indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[{"char":"f"},{"char":"l"},{"char":"o"},{"char":"o"},{"char":"r"},{"char":"-"},{"char":"-"},{"char":"-"},{"char":"舍"},{"char":"去"},{"char":"法"},{"char":"取"},{"char":"整"}],"isRichText":true,"keepLineBreak":true}},{"blockId":"3878-1555729229991","blockType":"paragraph","styles":{"text-indent":1,"align":"left","indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[{"char":"返"},{"char":"回"},{"char":"小"},{"char":"于"},{"char":"v"},{"char":"a"},{"char":"l"},{"char":"u"},{"char":"e"},{"char":"的"},{"char":"下"},{"char":"一"},{"char":"个"},{"char":"整"},{"char":"数"},{"char":"，"},{"char":"若"},{"char":"v"},{"char":"a"},{"char":"l"},{"char":"u"},{"char":"e"},{"char":"有"},{"char":"小"},{"char":"数"},{"char":"部"},{"char":"分"},{"char":"则"},{"char":"舍"},{"char":"去"},{"char":"取"},{"char":"整"}],"isRichText":true,"keepLineBreak":true}},{"blockId":"5851-1555729619523","blockType":"paragraph","styles":{"text-indent":1,"align":"left","indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[{"char":"e"},{"char":"g"},{"char":"："},{"char":"e"},{"char":"c"},{"char":"h"},{"char":"o"},{"char":" "},{"char":"f"},{"char":"l"},{"char":"o"},{"char":"o"},{"char":"r"},{"char":"("},{"char":"9"},{"char":"."},{"char":"9"},{"char":"9"},{"char":"9"},{"char":")"},{"char":" "},{"char":" "},{"char":"/"},{"char":"/"},{"char":"9"}],"isRichText":true,"keepLineBreak":true}},{"blockId":"7188-1555729638993","blockType":"paragraph","styles":{"text-indent":1,"align":"left","indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[],"isRichText":true,"keepLineBreak":true}},{"blockId":"9570-1555729774613","blockType":"paragraph","styles":{"align":"left","indent":0,"text-indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[{"char":"i"},{"char":"n"},{"char":"t"},{"char":"v"},{"char":"a"},{"char":"l"},{"char":"-"},{"char":"-"},{"char":"-"},{"char":"对"},{"char":"变"},{"char":"数"},{"char":"转"},{"char":"成"},{"char":"整"},{"char":"数"}],"isRichText":true,"keepLineBreak":true}},{"blockId":"5360-1555729776057","blockType":"paragraph","styles":{"text-indent":1,"align":"left","indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[{"char":"e"},{"char":"g"},{"char":":"},{"char":" "},{"char":"e"},{"char":"c"},{"char":"h"},{"char":"o"},{"char":" "},{"char":"i"},{"char":"n"},{"char":"t"},{"char":"v"},{"char":"a"},{"char":"l"},{"char":"("},{"char":"4"},{"char":"."},{"char":"3"},{"char":")"},{"char":" "},{"char":" "},{"char":" "},{"char":"/"},{"char":"/"},{"char":"4"}],"isRichText":true,"keepLineBreak":true}},{"blockId":"5025-1555729776057","blockType":"paragraph","styles":{"align":"left","indent":0,"text-indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[],"isRichText":true,"keepLineBreak":true}},{"blockId":"6614-1555729639177","blockType":"paragraph","styles":{"align":"left","indent":0,"text-indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[{"char":"r"},{"char":"o"},{"char":"u"},{"char":"n"},{"char":"d"},{"char":"-"},{"char":"-"},{"char":"-"},{"char":"对"},{"char":"浮"},{"char":"点"},{"char":"数"},{"char":"进"},{"char":"行"},{"char":"四"},{"char":"舍"},{"char":"五"},{"char":"入"}],"isRichText":true,"keepLineBreak":true}},{"blockId":"2125-1555729656091","blockType":"paragraph","styles":{"align":"left","indent":0,"text-indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[],"isRichText":true,"keepLineBreak":true}},{"blockId":"2370-1555729705612","blockType":"paragraph","styles":{"align":"left","indent":0,"text-indent":0,"line-height":1.75,"back-color":"","padding":""},"type":"paragraph","richText":{"data":[],"isRichText":true,"keepLineBreak":true}}]-->以上是关于php取整函数ceil,floor,round,intval的区别的主要内容,如果未能解决你的问题,请参考以下文章
php取整函数ceil,floor,round,intval的区别
php中除法取整的方法(round,ceil,floor)
C#取整函数Math.RoundMath.Ceiling和Math.Floor
三个函数ceil()floor()round()
三个函数ceil()floor()round()
C#取整函数Math.RoundMath.Ceiling和Math.Floor