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HomeBackend DevelopmentPHP Tutorial 提交表单 按上一页表单清空了不能正确显示怎么处理

提交表单 按下一页表单清空了不能正确显示怎么办
表单有好几个变量,提交表单后,判断各个变量与数据库的字段做比较,分页显示符合要求的数据。

但按下一页内容就变了,变成了所有数据都显示。我设的条件是表单内容为空显示所有数据的。

这样才能表单变量内容不被清空了。新手希望能用代码举个例!

------解决方案--------------------
你把你的代码贴上来看看,不然怎么解决

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