i'm looking for a very simple calculator plugin that shows on the index.
it is to calculate the volume of a room, like length x height x width, and multiply that times a factor and just show the outcome
i got this for the TPL file, but since i have no php knowledge i don't know how to turn this into a working plugin...
can someone help me with this?
PHP
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<!-- BEGIN: PLUGIN_CALCULATOR -->
<form action=""method="post">
<input type="text"name="l"value="F"/> x <input type="text"name="h"value="H"/> x <input type="text"name="w"value="W"/><br /><br />
