How to change php files encoding in bulk?

[glink1]

Hi

I have about 40 php files, and i want convert them to
encoding ISO-8859-2,

Do you know any program that could do it in bulk?
(whole folder at once)
If so, please suggest one.

[glink1]

I'm not searching for file encoding, im searching for
code page converter (from win-1250 to iso or utf),my bad,

[penders]

I'm not searching for file encoding, im searching for code page converter...

Are you refering to changing the Content-Type header that is returned from the server?