Best practice: how to increment not existing element of array

Question

I want to increment a value of an array, which is potentially not existing yet.

$array = [];
$array['nonExistentYet']++; // Notice

Problem

This leads to a NOTICE.

Attempt

I found a way to do this, but its kinda clunky:

$array = [];
$array['nonExistentYet'] = ($array['nonExistentYet'] ?? 0) + 1;

Question

Is there a more human readable/elegant way to do this?

Answer 1

My standard implementation for this is:

if (isset($array['nonExistentYet']))
   $array['nonExistentYet']++;
else
   $array['nonExistentYet'] = 1;

But this is one of the rarely scenarios where I use the @ operator to suppress warnings, but only if I have full control over the array:

@$array['nonExistentYet']++;

Generally, it is not good to suppress warnings or error messages!