PHP - Checking if array index exist or is null

php arrays null indexing isset
Virus721 picture Virus721 · Mar 9, 2013 · Viewed 53.2k times · Source

Is there a way to check if an array index exists or is null? isset() doesn't tell you whether the index doesn't exist or exists but is null. If I do : isset($array[$index]) || is_null($array[$index]) it won't work because if the index doesn't exist is_null will crash.

How can I check this please? Also is there a way to check only if something exist, no matter if it is set to null or not?

Answer

Virus721 picture Virus721 · Mar 9, 2013

The function array_key_exists() can do that, and property_exists() for objects, plus what Vineet1982 said. Thanks for your help.

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