How to clear browser cache with php

Question

User · Accepted Answer

header  Cache-Control  no-cache  must-revalidate    header  Expires  Mon  26 Jul 1997 05 00 00 GMT    header  Content-Type  application xml  charset utf-8

User · Answer

It seams you need to versionate  so when some change happens browser will catch something new and user won t need to clear browser s cache    You can do it by subfolders  example  css v1 style css  or by filename  example  css style v1 css  or even by setting different folders for your website  example   www mywebsite com site1  www mywebsite com site2  www mywebsite com site3   And use a  htaccess or even change httpd conf to redirect to your current application   If s about one image or page        lt   time   date  H i s     gt       lt img src  myfile jpg time  lt   time   gt   gt    You can use  time on parts when you don t wanna cache  So it will always pull a new image  Versionate it seams a better approach  otherwise it can overload your server  Remember  browser s cache it s not only good to user experience  but also for your server

User · Answer

With recent browser support of  quot Clear-Site-Data quot  headers  you can clear different types of data  https   developer mozilla org en-US docs Web HTTP Headers Clear-Site-Data header  Clear-Site-Data   quot cache quot    quot cookies quot    quot storage quot    quot executionContexts quot

User · Answer

You can delete the browser cache by setting these headers    lt  php header  Expires  Tue  01 Jan 2000 00 00 00 GMT    header  Last-Modified      gmdate  D  d M Y H i s       GMT    header  Cache-Control  no-store  no-cache  must-revalidate  max-age 0    header  Cache-Control  post-check 0  pre-check 0   false   header  Pragma  no-cache      gt

[php] How to clear browser cache with php?

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