Actually, after rethinking my workflow, if I were to add PHP to an HTML document, I would probably go to MMDocumentTypes.xml and add the highlighted lines.
<documenttype id="HTML" internaltype="HTML" winfileextension="html,htm,shtml,shtm,stm,tpl,lasso,xhtml" macfileextension="html,htm,shtml,shtm,tpl,lasso,xhtml,ssi" file="Default.html" writebyteordermark="false" mimetype="text/html"> <TITLE> <MMString:loadString id="mmdocumenttypes_0" /> <MMString:loadString id="mmdocumenttypes_14" /> </TITLE> <description> <MMString:loadString id="mmdocumenttypes_1" /> <MMString:loadString id="mmdocumenttypes_15" /> </description> <dtdcontext>html</dtdcontext> </documenttype> |
My apologies, just tested the above and it does not work. 
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