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--- uphp:uphp_intro [2018/09/01 10:28]
jeff created with content from uphp (which was from programming_the_wattmon)
+++ uphp:uphp_intro [2018/09/05 13:22]
jeff Added links to 'wattmons'
@@ Line 3: / Line 3: @@
 "Programming" and "scripting" are used interchangeably throughout this documentation.
-The Wattmon is built on a scripting language that is syntactically identical to PHP((PHP is a server-side scripting language designed primarily for web development but also used as a general-purpose programming language. PHP stands for "PHP: Hypertext Preprocessor." This confuses many people because the first word of the acronym is the acronym (this type of acronym is called a recursive acronym.) )) - we call it uPHP for Micro-PHP.  It has a small but powerful subset of the functions and features found in the PHP language.
+The [[hardware:wattmons|Wattmon]] is built on a scripting language that is syntactically identical to PHP((PHP is a server-side scripting language designed primarily for web development but also used as a general-purpose programming language. PHP stands for "PHP: Hypertext Preprocessor." This confuses many people because the first word of the acronym is the acronym (this type of acronym is called a recursive acronym.) )) - we call it uPHP for Micro-PHP.  It has a small but powerful subset of the functions and features found in the PHP language.
 =====Why uPHP?=====
-First perhaps it would be good to explain a bit about how and why we chose PHP.  The goal of the Wattmon is to provide a highly flexible platform that can be customized for pretty much any application imaginable, keeping in mind very low memory availability.  It became clear that a scripting language would be required to implement this, since having custom firmwares for various applications would be very tedious.  The question then became: what would be the *best* scripting language that is well known today and can be deployed on a microcontroller with such limited resource?  The choices are actually very small.  Most modern scripting languages require quite a bit of RAM.  So, we decided to roll our own scripting language from scratch and base it off a well known language.
+First perhaps it would be good to explain a bit about how and why we chose PHP.  The goal of the [[hardware:wattmons|Wattmon]] is to provide a highly flexible platform that can be customized for pretty much any application imaginable, keeping in mind very low memory availability.  It became clear that a scripting language would be required to implement this, since having custom firmwares for various applications would be very tedious.  The question then became: what would be the *best* scripting language that is well known today and can be deployed on a microcontroller with such limited resource?  The choices are actually very small.  Most modern scripting languages require quite a bit of RAM.  So, we decided to roll our own scripting language from scratch and base it off a well known language.
-The Wattmon interface is primarily browser based, and generates HTML pages on the fly from uPHP scripts.  The methodology of HTML-PHP integration is well understood by most programmers and hence it allows you to become more productive quickly.
+The [[hardware:wattmons|Wattmon]] interface is primarily browser based, and generates HTML pages on the fly from uPHP scripts.  The methodology of HTML-PHP integration is well understood by most programmers and hence it allows you to become more productive quickly.
 ====Challenges====
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 Of interest to those who want to dig deeper and advance into making tweaks and changes to the system:
-[[uphp:uPHP Language Basics]]
+[[uphp:uPHP Language Basics]] - Basic syntax and tips to get started
-[[uphp:functions|uPHP Function Reference]]
+[[uphp:functions|uPHP Function Reference]] - The entire function list (advanced)
+[[uPHP Special Variables]] - Special arrays that are populated automatically before a script is run

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