首页 \ 问答 \ 使用PHPExcel将excel文件的内容导入MySQL数据库(格式问题)(Using PHPExcel to import contents of excel file into MySQL database (format problems))

使用PHPExcel将excel文件的内容导入MySQL数据库(格式问题)(Using PHPExcel to import contents of excel file into MySQL database (format problems))

我正在将Excel 2007文件的内容导入MySQL数据库,但电子表格中的日期字段是自定义日期格式(dd-mmm-yy)。 我无法将其更改为文本,因为客户端将上传它,因此不可行。 当我导入文件的内容时,它会将日期作为数字插入,例如40978而不是09年1月12日。 我知道更改字段的数据库表格格式将没有效果,因为它的excels formatitng但有没有人知道这方面的方法? 不改变电子表格的格式?


I'm importing the contents of an Excel 2007 file into a MySQL database but the date field in the spreadsheet is a custom date format (dd-mmm-yy). I cannot change this to text because a client will be uploading it so it is not feasible. When I import the contents of the file it inserts the date as a number e.g. 40978 instead of 12-Jan-09. I know that changing the database table format of the field will have no effect as its excels formatitng but does anyone know a way around this? Without changing the format of the spreadsheet?


原文:https://stackoverflow.com/questions/5406253
更新时间:2022-12-20 21:12

最满意答案

如果您想要一个安全的解决方案,需要更少的样板代码而不是打开可选项,那么解决此问题就没有简单的解决方案。 抛出错误而不是返回nil绝对是一个坏主意,因为处理错误需要更多的样板代码而不是安全地展开可选项。

您不能覆盖现有的变量类型,因此您也不能使GKComponent.entity非可选。

使用保护语句进行可选绑定,这样可以最小化用于展开值的样板代码。


There is no easy solution to solve this issue if you want a safe solution that requires less boilerplate code than unwrapping an optional. Throwing an error instead of returning nil is definitely a bad idea, since handling an error requires even more boilerplate code than safely unwrapping an optional.

You cannot override existing variables types, so you cannot make GKComponent.entity non-optional either.

Use guard statements for optional binding, that way you can minimise the boilerplate code for unwrapping the value.

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