RE: [PHP] alternative to empty
| From: | yanghshiqi | Date: | Thu, 07 Jul 2005 08:43:25 +0000 |
| Subject: | RE: [PHP] alternative to empty | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-218285@lists.php.net to get a copy of this message | ||
May be you can try (string)$string or (int)$string (seemed a little
strange).
Any way Ross, we need to see ur code to determine your problem.
Best regards,
Shiqi Yang
-----Original Message-----
From: Philip Hallstrom [mailto:php@philip.pjkh.com]
Sent: Thursday, July 07, 2005 12:15 AM
To: Dan Rossi
Cc: Ross; php-general@lists.php.net
Subject: Re: [PHP] alternative to empty
>> 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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