note 118044 deleted from function.define by cmb
| From: | cmb@php.net | Date: | Sun, 06 Oct 2019 07:55:57 +0000 |
| Subject: | note 118044 deleted from function.define by cmb | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-212485@lists.php.net to get a copy of this message | ||
Note Submitter: fernandopsilveira at yahoo dot com dot br
----
Just like define(), defined() will check for constants exactly as specified. So, if you want to
check a constant in a namespace, you will need to specify the namespace in your call to defined(),
even if you're calling defined() from within a namespace.
To check for a defined constant within current namespace, you can use __NAMESPACE__ magic variable:
<?php
namespace mytest;
define('mytest\CONSTANTINE', 'value');
if (defined(__NAMESPACE__ . '\CONSTANTINE')) {
print "Constant is defined and is valued " . CONSTANTINE;
}
?>