php static array initialization workaround
I'm not sure what I should be searching to figure out this issue, so I'll show the code and describe the issue:
PHP Code:
<?php
class Foo
{
private static
$defaultSettings = array(
'bar' => new Baz() //error here
);
private
$settings;
public function __construct( $options = null )
{
$this->settings = isset( $options ) ? array_merge( self::$defaultSettings, $options ) : self::$defaultSettings;
}
}
class Baz
{
...code...
}
The Error:
Parse error: syntax error, unexpected T_NEW in [filename] on line [number]
What I'd like to do is have Foo::$defaultSettings
contain an instance of an object, but I can't initialize the object when I create the array.
Is there a simpler way around this issue than a static initializer?
Static initializer code for Foo
:
//self::init() would be called on the first line of __construct
private static function init()
{
static $initialized;
if ( !$initialized )
{
$initialized = true;
self::$defaultSettings['bar'] = new Baz();
}
}
I feel like there should be a simpler way around this issue than having to run an initializer.
Edit to add:
I could also make the initializer function public
and call it immediately after the class definition as Foo::init();
which开发者_Python百科 would reduce the overhead of the __construct
function; however, I can't really see a single method call being significant savings.
Class properties cannot evaluate or instantiate anything, unfortunately. The closest you can do is run something from your constructor.
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