Discuss: What is the Output and why?

Question

Simple PHP Converting & Typecasting :
Do you know the output without executing this Code?
If so, explain why.

Here we go:
<?php
$a = "a";
$b = "b";
$c = "c";

$a = $a + 1;
$b = $b++;
$c = ++$c;

echo $a;
echo $b;
echo $c;
?>

Answer 1

I have to admit, I'm very surprised. Expected some different output.
That's why I'm always double checking with echos a lot 😌