PHP Features

static_bindings_test.php

<?php

// Late Static Binding in PHP are great.
// However they are not supported in every version of PHP
// Use the code below in a new 3val.org window to test support
// for Late Static Bindings inside closures.

abstract class Demo
{
    protected $item;
    protected $calledClass;
    
    public function __construct($bean)
    {
        
        if( !empty($bean) ){
            $this->item = $bean;
        }
        
        $this->calledClass = get_called_class();
        
        // Some other code here
    }
    
    public function getCalledClass()
    {
        return $this->calledClass;
    }
    
    public static function parseArray($items)
    {
        return array_map(function($item){
            return new static($item);
        }, $items);
    }
    
}

final class Proto extends Demo
{
    
}


$list = [1,2,3,4];

print_r( array_map(function($i){
    if( $i instanceof \Demo || $i instanceof \Proto ){
        return $i->getCalledClass();
    }
    return 'Is null';
},  Proto::parseArray($list) ) );