PHP - Getting an array of instantiated objects having an array of classes

Question

My question is what is a neat way to obtain an array of objects from an array of classes.

The array of classes I get by using array_filter() on get_declared_classes().

EDIT:

My own attempts were pretty correct, the thing was I forgot to return value of in_array() in callback function :

$classes_array = array_filter(
     get_declared_classes(),
        function($class_name){
           return in_array('IItem', class_implements($class_name));
         }

$objects_array;
    foreach($classes_array as $class){
        $objects_array[] = new $class();
    }

Not event an example to work off of?

Jared Farrish
– Jared Farrish

2017-06-17 23:36:13 +00:00
Commented Jun 17, 2017 at 23:36 — Jared Farrish
– Jared Farrish, Commented Jun 17, 2017 at 23:36
Have you tried anything so far?

Chukwu Remijius
– Chukwu Remijius

2017-06-17 23:37:45 +00:00
Commented Jun 17, 2017 at 23:37 — Chukwu Remijius
– Chukwu Remijius, Commented Jun 17, 2017 at 23:37
This may helps, Creating PHP class instance with a string

LF-DevJourney
– LF-DevJourney

2017-06-17 23:47:01 +00:00
Commented Jun 17, 2017 at 23:47 — LF-DevJourney
– LF-DevJourney, Commented Jun 17, 2017 at 23:47

LF-DevJourney · Accepted Answer · 2017-06-17 23:45:21Z

3

You can use array_map(), and refer to Creating PHP class instance with a string

$objects = array_map(function($v){
  return new $v();
}, get_declared_classes());

answered Jun 17, 2017 at 23:45

LF-DevJourney

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1 Comment

Jacek Dziurdzikowski Over a year ago

This answer is correct, thank you very much! But in fact it is analogous to my own attempts, so it pointed me to that something else is wrong with my code than instantiating object by new $class() as I thought before. It turned out that I just forgot to return the value of in_array().

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