[PHP] Assignment Operator

Question

Can anyone explain me what is wrong with the assignment operator ?

For example i've encountered a challenge recently which was like this.

$var = "hello";
$var += 6;
echo $var;

The answer was 6
But I really cannot get it.
For what I've seen in internet, when there is += operator, it just makes like this.
$x += 6 >>>>> $x = $x + 6

Then why the answer isin't 'hello 6'
???

Answer 1

Antonio Parroni the challenge isnt weird.
php is weird.
the challenge teaches you the weirdness of php

Answer 2

php,php..php
a language of utmost weirdness.
the += operator is very unstable for string concatenation in php..
use "."
$var="hello";
$var=$var."6";
echo $var;

Answer 3

Brains🇳🇬 haha, makes sense. Thanks

Answer 4

Brains🇳🇬 then why such a weird challenge like this is present in the system ?
This is just unfair 🤒