Posted by howa on 06/02/07 09:23

a simple singleton class (PHP4)

which way is preffered?

// 1.
class Foo {

function getFoo() {
static $instace;
if (!isset($instace) ) {
$instance = new Foo();
// ...
}
return $instance;
}
}

$foo = Foo::getFoo();

// 2.

class Foo {

function &getFoo() {
static $instace;
if (!isset($instace) ) {
$instance = new Foo();
// ...
}
return $instance;
}
}

$foo =& Foo::getFoo();

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