Re: [PHP-DEV] PHP 4.0 Bug #4173: add function property_exists() please From: Andrei Zmievski (andrei <email protected>)
Date: 04/18/00

On Tue, 18 Apr 2000, dolecek <email protected> wrote:
> From: dolecek <email protected>
> Operating system: NetBSD (1.4X kernel, 1.4.1 userland)
> PHP version: 4.0 Release Candidate 1
> PHP Bug Type: Feature/Change Request
> Bug description: add function property_exists() please
>
> There are bunch of FOO_exists() functions to check for existence of functions, class methods and such. There is no way to check if an object has given attribute, though.
> It's easy to do in PHP:
>
> # return true if property exists in given object
> # boolean property_exists(Object obj, string name)
> function
> property_exists($obj, $name) {
> $attrs = get_object_vars($obj);
> return isset($attrs[$name]);
> }
>
> but this should be core PHP function.

Why? You can very easily do this:

if (isset($obj->$name)) { .. }

-Andrei
* It's an emergent property of human minds to create. * 

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