[[GD_Library]](beta) GDLIB is a library for graphical dynamic web development with functions to create PNG or JPEG images on the fly. It allows your code to draw images with lines, arcs, text and multiple colors. You may program scripts to do lots of image manupulation operations such as cut and paste from other images, flood… Read More »
[[PDF_Library]](beta) [[PDF_library function:var1|var2]] Macro Parameters: library function: Name of PDF Library function to be used. var1: variable name to be used to contain resulting status if any. var2: variable or string containing ‘php style’ pdf function parameters. These parameters are defined separately for each pdf function and may be seen by referencing links in the… Read More »
[[HEADER_FORCE_DOWNLOAD:filename]] Will cause a download dialog box to open and prompt user to accept and download the streamed script output. The download will be stored in a folder of their choosing on the local machine either creating or overwriting a file of the specified name. Parameter: filename(string) Name specification of file on local machine to… Read More »
[[HEADER_TYPE:content_type]] Specifies the type of content to be output by your script. Note that all header modifying commands must be placed or poked in to the active index template as specified at the top of body.tpl. Parameter: content_type(string) Examples: [[HEADER_TYPE:text/html]] [[HEADER_TYPE:$type]] Your custom nodes are capable of streaming any of the following data content types:… Read More »
Anytime you are dealing with headers, the shortcode must be the very first thing to be executed in your script. The only place where you may use this shortcode is on line 1 of whatever file you are importing as your index template. This template import file is specified in the first directive in body.tpl… Read More »
[[IF_FILE_FRESH:filename,interval]] Check for freshness of last modified content from a file whose name is stored in the variable location labeled as filename. Parameters: filename (string) may either be php variable or string value in quotes. interval (string or numerical expression) is the time period in seconds before an unmodified file becomes stale. Executes the following… Read More »
[[IF_FILE_STALE:filename,interval]] Check for freshness of last modified content from a file whose name is stored in the variable location labeled as filename. Parameters: filename (string) may either be php variable or string value in quotes. interval (string or numerical expression) is the time period in seconds before an unmodified file becomes stale. Executes the following… Read More »
This very simple chat room script example uses 3 modes of operation. Mode 1 creates a frameset showing mode 2 on top and the default mode 0 on bottom. Mode 2 is a data view of the chat transcript which auto refreshes every 10 seconds. Mode 0 is also the default mode which is used… Read More »
With cases where you wish to create a more complex script with multiple modes, The [[IF_EQUAL]], and forms of [[ELSE]] are generally used. Note that you should use the default mode for handling posted data. Create a node and paste this following code into it’s landing page editor. Goto the node’s address and test with… Read More »
This example uses the [[READ_FILE]] shortcode to load the data into a variable for printing to the screen. Create a node and paste one of the following code samples into it’s landing page editor. Goto the node’s address and test with browser. [[READ_FILE:comments.txt|content]] [[PRINT:content]] or [[INITIALIZE:filename|”comments.txt”]] [[READ_FILE:$filename|content]] [[PRINT:content]]
This example uses the [[APPEND_FILE]] shortcode to store the form response in a data file called comments.txt located in the node’s root folder. Note that the \t creates a tab delimiter and the \n creates a new line in output string to be stored. To overwrite previous content use [[WRITE_FILE]] instead. Create a node and… Read More »
The basic contact form example uses the [[EMAIL]] shortcode to send a response to the website admin or any other email address that you choose.. The email shortcode looks like this. [[EMAIL:$to|$from|$subject|$message]] Create a node and paste this following code into it’s landing page editor. Substitute your own email address in the code for testing…. Read More »
If a script being executed has form data posted in it’s request headers, this data may be automatically assigned to variables using the [[POST]] shortcode. [[POST:First_Name]] [[POST:Last_Name]] Hello [[PRINT:First_Name]], [[PRINT:Last_Name]] To combine the form and the handler into the same script we may use the [[IF_SUBMITTED]] with the [[ELSE]] and [[END_IF]] shortcodes to add flow… Read More »
This script example creates a basic form. See [[FORM]], [[INPUT]], [[SUBMIT]], and [[END_OF_FORM]]. Create a node and paste this following code into it’s landing page editor. Goto the node’s address and test with browser. [[FORM:#this]] [[INPUT:First_Name|Enter Your First Name]] [[INPUT:Last_Name|Enter Your Last Name]] [[SUBMIT:Save]] [[END_OF_FORM]]
A query string is everything to the right of a question mark found in a URL or internet web address. ex: google.com?search=mytown; the querystring is ‘search=mytown’. The querystring variable is: search and the value of ‘search’ is ‘mytown’. Create a node and paste this following code into it’s landing page editor. Goto the node’s address… Read More »
Strings are the literal ascii content of the variable whether numeric, alphabetic or special characters such as Unicode. The same variable may be used as both it’s numeric evaluation as well as it’s literal string content depending on the operation. See: What is a string? “three” and “3” are both strings but “3” may be … Read More »
Variable computation example. Outputs: 3 Create a node and paste this following code into it’s landing page editor. Goto the node’s address and test with browser. [[INITIALIZE:var1|1+2]] [[PRINT:var1]] Note: To bring variables within the calculations, add a dollar sign before each. You may also use parenthesis for algebraic expression grouping. [[INITIALIZE:var1|2]] [[INITIALIZE:var2|4]] [[INITIALIZE:var3|$var1+$var2]] [[INITIALIZE:var4|$var3/2]] The… Read More »
Variables may be assigned a name and a value such as first_name and Joe. Create a node and paste this following code into it’s landing page editor. Goto the node’s address and test with browser. [[INITIALIZE:first_name|”Joe”]] [[INITIALIZE:last_name|”Lee”]] Hello, [[PRINT:first_name]] [[PRINT:last_name]].[[cr]] Will output: Hello, Joe Lee.
Wikipedia definition of domain name: In general, a domain name represents an Internet Protocol (IP) resource, such as a personal computer used to access the Internet, a server computer hosting a web site, or the web site itself or any other service communicated via the Internet. In 2015, 294 million domain names had been registered…. Read More »
When talking about computer systems, A folder (also called directory, or catalog) is a way to organize computer files by name, type or other criteria. A directory is a storage space that many files can be placed into to group them together and organize the computer. A folder can also contain other folders. A folder… Read More »
[[FILE_EDITOR_HTML:label|filename]] Parameters: label (string with no spaces) filename (string containing relative path to file) The example below embeds a rich text item html snippet file editor on the node landing page which can allow the user to edit the file ../datafile.txt which is located in the node’s parent folder. Paths are relative to the… Read More »
[[EDITOR_RICH_TEXT:name|contentvar|height|bgcolor|skincolor|version]] Creates editable rich text area. Use in place of editbox for html editing. Parameters: name (string) content (string) text content to be edited. height (integer) bgcolor six digit hex rgb value following hash tag. ex: #ffffff means white. skincolor (string) six digit hex rgb value following hash tag. ex: #666666 means dark grey…. Read More »
[[GET_LAST_IMAGE]] Gets filename of last modified image file and places the value into a variable called “LAST_IMAGE’ for later use. This is useful because the last modified file is not always an image. Example 1: [[GET_LAST_IMAGE]] Last Modified: [[PRINT:LAST_IMAGE]][[cr]] [[hr]] Example 2: [[GET_LAST_IMAGE]] <img src=”[[=LAST_IMAGE]]” /> This shortcode is useful for building a node to… Read More »
[[AUTO_REFRESH:seconds]] seconds: Integer value of time interval between refreshes in seconds. example: [[AUTO_REFRESH:60]] The above shortcode example will cause the browser to automatically refresh the web page to the most current data every minute. Useful for creating dashboard report nodes requiring auto refreshing iframe to closely monitor latest data collection. This method can also be… Read More »