PHP Classes and Objects construct and destruct - php

Question

I´m trying to learn construct and destruct.
So, I made this
<?php
class Numbers {
public function __construct($numberint,$numbername,$numberletter,$numberpos) {
$this->numberint = $numberint;
$this->numbername = $numbername;
$this->numberletter = $numberletter;
$this->numberpos = $numberpos;
}
public function __destruct() {
unset($this->numberpos);
}
}
$number1 = new Numbers(1,"One","A",0);
print_r($number1);
?>
As you can see, I create the class Number and then, use construct for the Objects. But after construct, I want to use destruct, in this case, unset numberpos. I´m trying to put them together to understand how the work.
Anyone can help me?
My idea is to change the result:
Numbers Object ( [numberint] => 1 [numbername] => One [numberletter] => A [numberpos] => 0 )
To...
Numbers Object ( [numberint] => 1 [numbername] => One [numberletter] => A )
Thanks and remember that I´m learning :D

Answer 1

The destructor is there to destroy the whole object, not parts of an object. If you want your desired output, you could just do:
$number1 = new Numbers(1,"One","A",0);
print_r($number1);
unset($number1->numberpos);
print_r($number1);
Demo.
If you want to see your destructor getting called, unset the object:
class Numbers {
public function __destruct() {
echo "Destructing!\n";
}
}
$number1 = new Numbers();
unset($number1);
echo "Done!";
Outputs:
Destructing!
Done!