Tutorials

This section contains tutorials that demonstrate how to use the davi script to create websites and web applications.

WARNING

DaVinci script is still in development, so some features may not work as expected.

Syntax

The DaVinci script is a PHP-like language, so it has a similar syntax to PHP. The DaVinci script uses the <?davi tag to start the script and the ?> tag to end the script.

A DAVI script can be placed anywhere in the document. A DAVI script starts with <?davi and ends with ?>:

Hello World

<?davi

// Your code here
echo "Hello World!";

?>

Variables

Simple variables

<?davi
// Strings
$name = "John Doe";
echo "Hello, $name!";

// String concatenation
$age = 30;
echo("You are ",$age," years old");

// String concatenation
$price = "19.99";
echo("The price is", $price);
?>

Closure variable

<?davi

// Closure variable
$timeHandler = function() {
    $time = time();
    return($time);
}
echo($timeHandler());

?>

Functions

Custom Function declaration

<?davi

// Function declaration
function sayHello($name) {
    echo("Hello,", $name, "!");
}

sayHello("John Doe");

?>

Built-in Functions

Times functions

<?davi

// Built-in functions
echo("Current time: ", time());

// Download content from URL
$url = "https://microweber.com/";
echo(fileGetContents($url));

?>

Math calculations

<?davi

// In Echo with string 
echo("Test calculation: 1+2*3=", 1 + 2 * 3);

// Only math calculation
echo(1 + 2 * 3);

?>

If Statement

<?davi
$age = 30;
if ($age > 18) {
    echo("You are an adult");
} else {
    echo("You are a child");
}
?>

Arrays

<?davi

// Array declaration
$names = ["John", "Doe", "Jane", "Doe"];

echo($names[0]);

?>

Sort Functions

<?davi

$list = ["Bozhidar", "Veselinov", "Slaveykov", "Asenov"];

sort($list);
echo($list);

sort($list, lower);
echo($list);

?>

For Loop

<?davi

$list = ["Bozhidar", "Veselinov", "Slaveykov", "Asenov"];

for ($x in $list) {
    echo($x);
}

?>

Build a simple HTTP server

<?davi
// DaVinci HTTP Server

$homeHandler = function() {
    return("Welcome to the DaVinci HTTP Server!");
}

$helloHandler = function() {
    return("Hello, World!");
}

$timeHandler = function() {
    $time = time();
    return($time);
}

$calculationHandler = function() {
    return(5 + 5);
}

httpRegister("/", $homeHandler);
httpRegister("/hello", $helloHandler);
httpRegister("/time", $timeHandler);
httpRegister("/calculation", $calculationHandler);

httpListen(":8080");

?>

Build a simple HTTP server class

<?davi
// DaVinci Script

$timeHandler = function() {
    $time = time();
    return($time);
}

$calculationHandler = function() {
    return(5 + 5);
}

$homeHandler = function() {
    return("Cool!");
}

$helloHandler = function() {
    return("Hello, World!");
}

class HttpServer {

    function route($path, $handler) {
        httpRegister($path, $handler);
    }

    function run($port) {
        httpListen($port);
    }

}


$server = new HttpServer();
$server->route("/", $homeHandler);
$server->route("/hello", $helloHandler);
$server->route("/time", $timeHandler);
$server->route("/calculation", $calculationHandler);
$server->run(":8080");

?>