Comments on: javascript cache problem, solved

By: Kae Verens

Kae Verens — Tue, 27 Jan 2009 07:42:53 +0000

M@ñ, this solution is most likely not for you. The solution I’ve posted above is specifically for PHP + Linux + Apache. You are probably using ASPX + Windows + IIS. Totally different environment.

You would have to get help from an experienced ASPX programmer.

By: M@ñ

M@ñ — Tue, 27 Jan 2009 06:54:18 +0000

Excuse me for being so dumbfounded here coz. I just started coding just lately. But how can I embed the codes if my ASPX that references the javascript?

By: BoÅ¡tjan

BoÅ¡tjan — Sun, 31 Aug 2008 07:29:13 +0000

If there are more files, you can use the biggest filemtime (eg. modified time of last changed file) and it’s allmost the same.

But ms5 has an advantage: if you upload older version of the file, md5 is the same, and already cached my users browser.

By: Kae Verens

Kae Verens — Wed, 27 Aug 2008 07:53:47 +0000

BoÅ¡tjan, that’s a good solution if there is only one javascript file (the first case described above), but if there are multiple, then you need a unique string which will cover them all (the second case).

But yeah – I think in the first case, mtime is sufficient. You’re right.

By: BoÅ¡tjan

BoÅ¡tjan — Wed, 27 Aug 2008 07:37:56 +0000

You don’t need to calculate md5, you can simply use filemtime($file_url) instead – it’s much faster!

By: Kae Verens

Kae Verens — Mon, 30 Jun 2008 08:01:26 +0000

Domi, true. But also true of lines within the javascript. there's nothing I can do about the latter without much work. and if the writer tends to finish the lines in the middle of the file with semi-colons, then my guess is that the same author would finish the last line of the script with a semi-colon.

By: Domi

Domi — Thu, 26 Jun 2008 14:21:13 +0000

V. cool.

A possible refinement (depending on your js sources) is to add a semicolon on the end of each javascript file contents, for the case where the original doesn’t have it (like if it’s packed) and it runs into the next one.

Cheers

By: klog » Blog Archive » efficient JS minification using PHP

klog » Blog Archive » efficient JS minification using PHP — Tue, 20 May 2008 21:27:08 +0000

[...] solution is to save the cached file in a file named using an MD5 of the last modified datetimes (genius idea – I’d love to shake the author’s hand). That way the cache will always be [...]

By: Mikul Gohil

Mikul Gohil — Wed, 07 May 2008 19:12:37 +0000

sorry for that i have removed from my site

By: Mikul Gohil

Mikul Gohil — Wed, 07 May 2008 19:11:01 +0000

ok man i will just link to your post sorry for that