Script and Variables

This page show you how to use the Alinous-Script. The Alinous-Script is like javascript and the variable is based on the DOM(Document Object Model) model.

Set of Alinous-Script and html
Basic script and html

When returned value is not 0

Script variables

Existance check of variables

Type of variables
The Array variables
Reserved variables

Set of Alinous-Script and html

The Alinous-Module consists of Alinous-Script and HTML, and sometimes HTML does not exist.

When you write sctipt to download module, or module to redirecting other page, the html file is not necessary.

The execution order is

Execute Alinous-Script
Render HTML with the result of Alinous-Script

Basic script and html

You can make variables in the Alinous-Script.


$test = "Hello world!!";

return 0;

This script returns 0, then the exexution process goes to the html file.


<html>
<head>
        <title>The simplest sample</title>
</head>
<body>
<h>This is a sample program</h>

{$test}

</body>
</html>

When returned value is not 0

if the value of return value is not 0, then the page will forwarded to other page.


$test = "Hello world!!";

return "/select/index.html";

Script variables

The script variable is DOM liked, and you can use the parent-children structure by separating with ".".


$message.hello = "Hello world!!";
$message.gooby = "good by";

return 0;

Existance check of variables

When the variable does not exists, the it is same with having null value.


$message.hello = "Hello world!!";

if($message.hello == null){
        //　$message.hello exists, so don't come here
        $exist = "Does not exists";
}

if($message.goodby == null){
        //　$message.goodby does not exists, so come here
        $exist = "Does not exists";
}

return 0;

Type of variables

There are 3 type of Alinous-Script variable.

String
Integer
Double

The type of value is decided when substituting value.


// String value
$valStr = "文字列型";

// Integer value
$valInt = 100;

// Double value
$valDouble = 10.0;

return 0;

You can watch them by using debugger.

variables in the debugger

The Array variables

You can use array variables. The variables in the array is automatically allocated on substitutions.


// Simpe array variable
$valArray[0] = "test";
$valArray[1] = "test1";
$valArray[2] = "test2";
$valArray[3] = "test3";

// Array of Dom variables
$valDom[0].name = "iizuka";
$valDom[0].value = "tomohiro";
$valDom[1].name = "yamada";
$valDom[1].value = "tarou";

return 0;

You can watch it with debugger.

Watch array variables with debugger

Reserved variables

Some variables are reserved by Alinous-Core server. These are below.

Variable name	Description
$IN	Parameters of GET or POST method in HTTP protocol
$SESSION	Session key and stored values in the session
$HTTP	HTTP Header