On Saturday 14 October 2006 19:09, AR wrote:
> Hello,
>
> I've rewritten my class as you told me:
>
> ----------------------------------------------------------
> class returnConfigParams
>
> {
>
> private static $instance = NULL;
>
> var $a;
> var $b;
> var $c;
> var $d;
>
> private function __construct() {
> }
>
> // function that get the database parameters from "properties.php"
>
> public static function getInstance() {
>
> if (!self::$instance)
> {
> /*** set this to the correct path and add some error checking ***/
> include($_SERVER['DOCUMENT_ROOT']."/properties.php");
> self::$instance = array($a, $b, $c, $d);
> }
> return self::$instance;
> }
>
> private function __clone(){
> }
>
> }
> ----------------------------------------------------------
>
> and i'm calling it with
>
> returnConfigParams::getInstance(); (probably wrongly)
>
> The question is how to access the individual elements of the array.
I think you're still misunderstanding the concepts involved.
If you have an array assigned to a variable, you access elements of it with
[].
$foo = array('a', 'b', 'c');
print $foo[0]; // gives 'a'
$bar = array('a' => 'hello', 'b' => 'world');
print $foo['b']; // gives 'world'
http://us3.php.net/manual/en/language.types.array.php
It doesn't matter if you got the array as a return from a function or method
or not.
However, what you're doing here is horribly bastardizing classes and
singletons. :-) Generally, a getInstance() is used to return an instance of
a CLASS, not an array.
If you just want to access the properties of an object, you use the object
dereference operator, ->.
$foo = new returnConfigParams();
print $foo->a; // prints whatever is the value of the property var $a
http://us3.php.net/manual/en/language.oop.php
Of course, if you're trying to get database parameter information, then all of
this is grossly over-engineered.
properties.php:
<?php
$dbsettings['a'] = 'foo';
$dbsettings['b'] = 'bar';
$dbsettings['c'] = 'baz';
index.php (or whatever):
require('properties.php');
And you now have an array $dbsettings, which has the values you need.
Much simpler, and much faster.
--
Larry Garfield AIM: LOLG42
larry@xxxxxxxxxxxxxxxx ICQ: 6817012
"If nature has made any one thing less susceptible than all others of
exclusive property, it is the action of the thinking power called an idea,
which an individual may exclusively possess as long as he keeps it to
himself; but the moment it is divulged, it forces itself into the possession
of every one, and the receiver cannot dispossess himself of it." -- Thomas
Jefferson
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