如何在PHP中确保正整数值 [英] How to make sure a positive integer value in PHP

问题描述

我正在使用变量$ pagenum，该变量通过GET方法获取?pageid值.我想确保此值必须为正整数值.我该怎么做?

I am using a variable $pagenum which gets the ?pageid value through GET method. I want to make sure that this value must be positive integer value. How can I do that?

推荐答案

pagenum，它通过GET方法获取?pageid值.我想确保此值必须为正整数值.我该怎么办?

pagenum which gets the ?pageid value through GET method. I want to make sure that this value must be positive integer value. How can I do that?

这里是伪代码:

1.检查您要分配的值
2.如果它为负(<0)，请不要分配.
3.否则，分配它.

[更新]
我发现了此链接 [

Here''s a pseudocode:

1. Check the value that you want to assign
2. If it is negative(<0), dont assign.
3. Else, assign it.

[update]
I found this link[^]

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