* A "php" program in the path, that can run standalone php programs.
* [[cpan Digest::SHA1]]
-On a Debian system, this can be accomplished by installing the
-`libsparkline-php`, `php5-gd`, `php5-cli`, and `libdigest-sha1-perl`
-packages.
+On a Debian system, this can be accomplished by installing these packages:
+`libsparkline-php` `php5-gd` `php5-cli` `libdigest-sha1-perl`
# examples
# usage
-The form for the data points is "x,y" for line graphs, or just "y" if the x
-values don't matter. Bar graphs can also add "(color)" to specify a color
-for that bar.
+The form for the data points is "x,y", or just "y" if the x values don't
+matter. Bar graphs can also add "(color)" to specify a color for that bar.
The following named parameters are recognised. Most of these are the same
as those used by the underlying sparkline library, which is documented in