Shorthand for isset() in php
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NULL coalescing operator in php
$var = $var ?? "default";0You can use this snippet as a shorthand for isset() function in php which is a NULL coalescing operator. It is used to check whether a given variable is NULL or not and returns its first operand if it exists and is not NULL else it returns the second operand. It will fetch the value of $var and returns 'default' if it ($var) does not exist.
Instead of writing any lengthy code like $var = isset($var) ? $var : 'default'; you can use this code snippet.
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