note 35064 modified in language.constants by danbrown
| From: | danbrown@php.net | Date: | Tue, 26 Jul 2011 20:05:56 +0000 |
| Subject: | note 35064 modified in language.constants by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-181913@lists.php.net to get a copy of this message | ||
I find using the concatenation operator helps disambiguate value assignments with constants. For
example, setting constants in a global configuration file:
<?php
define('LOCATOR', "/locator");
define('CLASSES', LOCATOR."/code/classes");
define('FUNCTIONS', LOCATOR."/code/functions");
define('USERDIR', LOCATOR."/user");
?>
Later, I can use the same convention when invoking a constant's value for static constructs
such as require() calls:
<?php
require_once(FUNCTIONS."/database.fnc");
require_once(FUNCTIONS."/randchar.fnc");
?>
as well as dynamic constructs, typical of value assignment to variables:
<?php
$userid = randchar(8,'anc','u');
$usermap = USERDIR."/".$userid.".png";
?>
The above convention works for me, and helps produce self-documenting code.
-- Erich
--was--
I find using the concatenation operator helps disambiguate value assignments with constants. For
example, setting constants in a global configuration file:
define('LOCATOR', "/locator");
define('CLASSES', LOCATOR."/code/classes");
define('FUNCTIONS', LOCATOR."/code/functions");
define('USERDIR', LOCATOR."/user");
Later, I can use the same convention when invoking a constant's value for static constructs
such as require() calls:
require_once(FUNCTIONS."/database.fnc");
require_once(FUNCTIONS."/randchar.fnc");
as well as dynamic constructs, typical of value assignment to variables:
$userid = randchar(8,'anc','u');
$usermap = USERDIR."/".$userid.".png";
The above convention works for me, and helps produce self-documenting code.
-- Erich
http://php.net/manual/en/language.constants.php