Re: [PHP] alternative to empty

[Philip Hallstrom]

I have been using empty in forms for some time now. but have just discovered

that

      PHP 4 As of PHP 4, The string value "0" is considered empty.

If ($string == '') ??

Careful... notice the differenec b/n == and ===....

<?php
  $s = 0;
  if ($s == '') {
    print("==\n");
  }

  if ($s === '') {
    print("===\n");
  }
?>

% php foo.php
==
%

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