PHP Elvis operator vs null coalescing operator

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Can someone clarify the differences between PHP's null coalescing operator (??) and ternary operator abbreviation (?:)?

When do they act differently from when they act similarly, if at all?

$a ?: $b

Vs.

$a ?? $b

Can someone please explain this to me?

Aug 3, 2022 in PHP by Kithuzzz
• 38,010 points
561 views

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