check array keys in PHP
There are many ways to check if an array key exists or is empty.
This Table compares the different methods and there results
Written by Nicolas
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Realize that, in this case, isset and empty have function-like syntaxes, but they aren't really functions, different of array_key_exists, that is a syntactic abstraction for using isset or empty. Monads could be implemeted to avoid exceptions with nullables.
over 1 year ago
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