2017-03-03 03:05
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I have a web page that over_writes a CSS file when the page admin changes a few attributes through a web form and a database table. My problem is that the browser sometimes caches the old file and ignores the new version. It has been suggested to me that I should use a file versioning scheme that would basically change the name of the file so that I would never have to worry about the browser caching the old version. Is there any other way around this problem besides the versioning scheme?

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当页面管理员通过网络表单更改一些属性时,我有一个覆盖CSS文件的网页 数据库表。 我的问题是浏览器有时会缓存旧文件并忽略新版本。 有人建议我应该使用一个文件版本控制方案,它基本上会改变文件的名称,这样我就不必担心浏览器缓存旧版本了。 除了版本控制方案之外还有其他方法解决这个问题吗?

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  • doujian0265 2017-03-03 03:54

    When including your CSS file in the HTML header, you could simply add a parameter to the query string:

    <link rel="stylesheet" href="style.css?v=2">

    In your case, you could increment this number programmatically every time the page admin changes something (assuming you have set $cssVersion somewhere):

    <link rel="stylesheet" href="style.css?v=<?php echo $cssVersion; ?>">

    You would have to store $cssVersion in a database column or in a file.

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