Actually, here's a more insane version: $x = 0; if(!empty($x)){ echo '"0" is emp... | Hacker News

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adambard on Aug 10, 2011 | parent | context | favorite | on: I Like PHP

Actually, here's a more insane version:

  $x = 0;

  if(!empty($x)){

    echo '"0" is empty';

  }

pornel on Aug 10, 2011 [–]

empty() is an alias for 'isset($x) && $x', so this example is semantically identical to the previous one (since $x is always set). PHP doesn't have any special concept of "emptyness" to check for.

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