Anup Shukla schreef:
Nathan Nobbe wrote:
Actually, I don't think so. I believe constructors return void, while
the 'new' keyword returns a copy of the object.
im pretty sure constructors return an object instance:
php > class Test { function __construct() {} }
php > var_dump(new Test());
object(Test)#1 (0) {
}
AFAIK, constructor simply constructs the object,
and *new* is the one that binds the reference to the variable
on the lhs.
not exactly - 'new' asks php to initialize an object of the given class,
the 'binding' to a variable occurs because of the assignment operator. the
__construct()
method is called automatically by php after the object structure has been
initialized, so primarily
nothing is returned because the call to __construct() doesn't happen directly
in userland code.
at least that's how I understand it.
So, constructors return nothing.
but anyway, how could you even test that __construct() returned void
and the new keyword returned a copy of the object? new essentially
invokes __construct() and passes along its return value, near as i can
tell.
Christoph,
if you dont want to write a function in the global namespace, as
suggested
in the article, Eric posted, just add a simple factory method in your
class,
eg.
<?php
class Test {
public static function getInstance() {
return new Test();
}
public function doSomething() {
echo __METHOD__ . PHP_EOL;
}
}
Test::getInstance()->doSomething();
?>
-nathan
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