# 2 DAYS
<FilesMatch "\.(ico|pdf|flv|swf|xml|txt)$">
Header set Cache-Control "max-age=172800, public, must-revalidate"
</FilesMatch>
 
# 1 min
<FilesMatch "\.(html|htm|csv|xls|jpg|jpeg|png|gif)$">
Header set Cache-Control "max-age=60, must-revalidate"
</FilesMatch>

# 5 sec
<FilesMatch "\.(php|js|css)$">
Header set Cache-Control "max-age=5, must-revalidate"
</FilesMatch>