Re: Detecting if a null variable exists?
| From: | Michael Wallner | Date: | Mon, 14 Jun 2010 06:46:29 +0000 |
| Subject: | Re: Detecting if a null variable exists? | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-48764@lists.php.net to get a copy of this message | ||
On 06/11/2010 07:43 PM, Brian Moon wrote:
Is it just me or are we missing a way in the language to check if a variable that has been set to NULL exists or not? ... perhaps an var_exists() function is needed to fill this hole?php -r 'function f(){$f=null; var_dump(array_key_exists("f", get_defined_vars()));} f();' Mike