Cast a PHP array into a user object?

Question

I have an array which I retrieve from some other source. This array then needs to be casted into a custom class I've created.

The reason I can't use stdObject, is because my class has a custom __get as well as a number of convinience methods.

I basically need something like this:

$obj = (MyClass) $array;

Which does not look possible, it causes a syntax error.

Interesting question! This may be impossible. – Pekka Dec 25 '10 at 00:55 — Pekka, Dec 25 '10 at 00:55

score 8 · Accepted Answer · answered Dec 25 '10 at 00:55

8

Make a constructor that takes an array and constructs the object out of that array.

answered Dec 25 '10 at 00:55

Femaref

60,705
7
138
176

the "constructing" can be done quickly http://stackoverflow.com/a/1869147/3779853 – phil294 Dec 26 '16 at 00:08

score 4 · Answer 2 · edited Dec 17 '14 at 14:12

4

Maybe you could achieve it with MyClass::__set_state($array)

edited Dec 17 '14 at 14:12

Peter Souter

5,110
1
33
62

answered Dec 17 '14 at 13:44

user1823491

41
2

@nwinkler: Sure it does. Check the docs: http://php.net/manual/en/language.oop5.magic.php#object.set-state – geon Dec 17 '14 at 14:46

RobertPitt · Answer 3 · 2010-12-25T01:29:03.730

3

Theres a way which I have used before but is more of an hack, you can cast the array to an stdclass then serialize it into a string, then using string manipulation change the class name and then un-serialize the object:

function ClassCaster($class, $object)
{
    return unserialize(preg_replace('/^O:\d+:"[^"]++"/', 'O:' . strlen($class) . ':"' . $class . '"', serialize($object)));
}

class SampleClass
{
    public function __wakeup(){ /*Generic wake up from serialization */}
}

$array = array(/* ... */);
$SampleClass = ClassCaster("SampleClass",(object)$array);

This is not a pretty method but i believe its the only hack about.

edited Dec 25 '10 at 01:29

answered Dec 25 '10 at 01:17

RobertPitt

56,863
21
114
161

Wasn't me. I've upvoted :) The solution is too much of a hack though. – Kristina Dec 25 '10 at 01:28
Yea, but at-least its a possibility, and thank you for the vote – RobertPitt Dec 25 '10 at 01:29

Cast a PHP array into a user object?

3 Answers3