Optional Chaining
Optional chaining if extremely useful, it allows us to call a specific object key and if it’s undefined or null, it returns undefined instead of throwing an error.
const res = await fetch('https://some.route/');
const json = await res.json();
if( json?.currentTemperature ){
// Your code...
}Optional Chaining In PHP
$res = file_get_contents('https://some.route/');
$json = json_decode($res);
if( @$json?->currentTemperature ){
// Your code...
}If you’re unsure what the @ is doing in this example I mention it in my article about Destructuring Assignment.