Constants and namespaces

Really confused; seems php doc is in error re: "only the following types of code are affected by namespaces: classes (including abstracts and traits), interfaces, functions and constants."

I'm running php 5.6.7 and finding that constant definitions seem to ignore namespace declarations:

<?php namespace SAbboushi;

define("ASDF", "asdf"); // expected this to be defined in SAbboushi namespace i.e. \SAbboushi\ASDF but seems it is not:

$a = \ASDF; // 'asdf'; // expected an 'Undefined Constant' error
$a =  ASDF; // 'asdf'; 

$a = \SAbboushi\ASDF; // Undefined constant 'SAbboushi\ASDF': this error SUGGESTS to me that constants can be defined in a namespace
$a = SAbboushi\ASDF; // Undefined constant 'SAbboushi\SAbboushi\ASDF'

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What am I missing?
SAbboushiAsked:
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käµfm³d 👽Commented:
According to the comments on the define manual page, you need to include the namespace in your call to define if you want the constant to be in a namespace.
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Dave BaldwinFixer of ProblemsCommented:
You also may need to put spaces on either side of the constant.  Running it all together can make it all one word that is not the constant.
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SAbboushiAuthor Commented:
Thank guys
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