Differences

This shows you the differences between two versions of the page.

--- uphp:uphp_language_basics [2018/09/05 13:23]
jeff Added links to 'wattmons'
+++ uphp:uphp_language_basics [2021/09/13 05:57]
@@ Line 1: / Line 1: @@
-======uPHP Language Basics======
-The following sections describe how to work with uPHP scripts.
-=====uPHP Tags=====
-When [[hardware:wattmons|Wattmon]] parses a file, it looks for opening and closing tags, which are ''<?'' and ''?>'' respectively. This tells [[hardware:wattmons|Wattmon]] to start and stop interpreting the uPHP code between them. Parsing in this manner allows you to integrate script code within an HTML file as everything outside of a pair of opening and closing tags is ignored by the uPHP parser.
-<code php>
-Some text
-<?
-  print(‘hello, uPHP’);
-?>
-Some more text
-</code>
-In addition, you can integrate multiple code blocks within a page, even if it is within a uPHP code block.  For example if you wished to display a block of HTML based on a uPHP condition, it would go something like this:
-<code php>
-<?
-  If ($mycondition > 5) {
-    ?> This will only be output if my condition > 5 <?
-  } else {
-    ?> This will be output if the first condition is not true. <?
-  }
-?>
-</code>
-=====Instruction Separation=====
-As in C and PHP, uPHP requires instructions to be terminated with a semicolon at the end of each statement. The closing tag of a block of uPHP code automatically implies a semicolon; you do not need to have a semicolon terminating the last line of a uPHP block. The closing tag for the block will include the immediately trailing newline if one is present.
-=====Comments=====
-uPHP supports 'C', 'C++' and Unix shell-style (Perl style) comments. For example:
-<code php>
-<?
-  // comment 1
-  $x=1;
-  # comment2
-  $x=2;
-  print($x);
-  /* comment 3 */
-  $x=3;
-  print($x);
-?>
-</code>
-The "one-line" comment styles only comment to the end of the line or the current block of uPHP code, whichever comes first. This means that HTML code after ''%%//%% ... ?>'' or ''# ... ?>'' WILL be printed: ''?>'' breaks out of uPHP mode and returns to HTML mode, and ''%%//%%'' or ''#'' cannot influence that.
-'C' style comments end at the first ''*/'' encountered. Make sure you don't nest 'C' style comments. It is easy to make this mistake if you are trying to comment out a large block of code.
-<code php>
-<?
-/*
-echo 'This is a test'; /* This comment will cause a problem */
-echo 'Print this also';
-*/
-?>
-</code>
-=====Programmer Reference=====
-  * [[functions|uPHP Function Reference]] - The entire function list (advanced)
-  * [[uPHP Special Variables]] - Special arrays that are populated automatically before a script is run

Wattmon Documentation Wiki

User Tools

Site Tools

Differences

Page Tools