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Explains the difference between PHP's Elvis operator (?:) and null coalescing operator (??). The Elvis operator checks for truthy values and returns a fallback for any falsy value (false, 0, empty string, null), while the null coalescing operator only checks for null. Using ?? is safer when handling numeric inputs like 0, which should be preserved rather than treated as falsy. Includes practical examples with form data and user input to demonstrate when each operator is appropriate.

Understanding ?: vs ?? in PHP: The Clear, Simple Difference

Muhammed Elfeqy

PHP’s ?: vs ?? — they look similar but behave very differently.
A quick guide with real examples to help you choose the right one:

<p>PHP’s ?: vs ?? — they look similar but behave very differently.
A quick guide with real examples to help you choose the right one:</p>

<p>I though ?? is shorthand for ?: . What a lame operator.</p>
