Re: Custom function
| From: | Simon J Welsh | Date: | Wed, 16 Feb 2011 00:49:47 +0000 |
| Subject: | Re: Custom function | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-311350@lists.php.net to get a copy of this message | ||
On 16/02/2011, at 1:21 PM, Mark Kelly wrote:
> In this way almost any value in $z will trigger the conditional code,
> including 0 or an empty string. The exceptions are FALSE and NULL. If you
> explicitly need to react to a NULL value, use is_null() to detect it.
http://nz.php.net/boolean#language.types.boolean.casting
As $z is converted to a boolean and exists, that works just the same way as !empty().
---
Simon Welsh
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