PHP Struct class

example1.php

<?php
require 'Struct.php';

// define a 'coordinates' struct with 3 properties
$coords = Struct::factory('degree', 'minute', 'second' ,'pole');
 
// create 2 latitude/longitude numbers
$lat = $coords->create(35, 41, 5.4816, 'N');
$lng = $coords->create(139, 45, 56.6958, 'E');
 
// use the different values by name
echo $lat->degree . '° ' . $lat->minute . "' " . $lat->second . '" ' . $lat->pole;

example2.php

<?php
require 'Struct.php';

// define a struct
$struct1 = Struct::factory('var1', 'var2');
 
// create 2 variables of the 'struct1' type
$instance0 = $struct1->create('val0-1', 'val0-2');
$instance1 = $struct1->create('val1-1', 'val1-2');
$instance2 = $struct1->create('val2-1'); // var2 will be null
 
// use the variables later on in a readable manner
echo $instance1->var2;

example3.php

<?php
require 'Struct.php';

// define a struct with a default value
$struct2 = Struct::factory('var3', 'var4');
$struct2->var3 = 'default';
 
// create 2 variables of the 'struct2' type
$instance3 = $struct2->create('val3-1', 'val3-2');
$instance4 = $struct2->create('val4-1', 'val4-2');
$instance5 = $struct2->create(null, 'val5-2'); // null becomes the default value
 
// use the variables later on in a readable manner
echo $instance4->var3;

Struct.php

<?php
class Struct
{
    /**
     * Define a new struct object, a blueprint object with only empty properties.
     */
    public static function factory()
    {
        $struct = new self;
        foreach (func_get_args() as $value) {
            $struct->$value = null;
        }
        return $struct;
    }
 
    /**
     * Create a new variable of the struct type $this.
     */
    public function create()
    {
        // Clone the empty blueprint-struct ($this) into the new data $struct.
        $struct = clone $this;
 
        // Populate the new struct.
        $properties = array_keys((array) $struct);
        foreach (func_get_args() as $key => $value) {
            if (!is_null($value)) {
                $struct->$properties[$key] = $value;
            }
        }
 
        // Return the populated struct.
        return $struct;
    }
}

These examples is type safe of our data in array objects