Is this a proper syntax (PHP 7.3)

I got the following example from chatgpt:

Example 1

$hasValue = true; $hasValue ?: 'yes it does' (This syntax works)

Normally I would use ternary operator as such:

Example 2 $isAdult = ($age >= 18) ? "Adult" : "Minor";

I could not find examples online for Example 1 although it's working.

Level 75

Look at php wiki and changes.

Level 5

honestly this is a monstrosity 😅. As for code readability you'd expect $hasSomething and $isSomething to return booleans.

As regards of the ternary, it does not work like that. Suppose:

$hasValue = true;
$something = $hasValue ?: 'yes';
// prints out true

$hasValue = false;
$something = $hasValue?:'yes';
//prints out 'yes'

Stick to the "Example 2" but beware of variable naming, it really makes difference if you follow a convention.

Level 122

ah, the 'elvis' operator

Your first example is incorrect

$hasValue = 'oranges'; 
echo $hasValue ?: 'apples';   // oranges

$hasValue = null;
echo $hasValue ?: 'apples';   // apples

Its a ternary where the true case does not need to be mentioned

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