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@ 2019-09-18T11:08:26Z

<?php
class locator {
    public $instances;
    public function setDef($name, $instance){
        $this->instances[$name] = $instance;
    } 
    public function get($name){
        if(isset($this->instances[$name])){
            $o = (new ReflectionClass($name))->getConstructor();
            if($o === null || null === $o->getParameters()){
                return new $this->instances[$name](); 
            } else {
                $p = $o->getParameters();
                $instancesArray = [];
                foreach($p as $i){
                    $instancesArray[] = $this->get($i->getClass()->name);
                }
                $inst = new ReflectionClass($this->instances[$name]);
                return $inst->newInstanceArgs($instancesArray);
            }
        }
    }
}

class z {
    public $z = "zzzzzz";
}

class base {
    public $b = "base !!!";
}

class second {
    public $z;
    public $s = "second !!!";
    public function __construct(z $a){
        $this->z = $a;
    }
}

class a {
    public $base;
    public $second;
    public function __construct(base $b, second $s){
        $this->base = $b;
        $this->second = $s;
    }
}



$loc = new locator();
$loc->setDef('z', z::class);
$loc->setDef('second', second::class);
$loc->setDef('base', base::class);
$loc->setDef('a', a::class);

$o = $loc->get('a');
echo $o->base->b;
echo "<br>";
echo $o->second->s;
echo "<br>";
echo $o->second->z->z;

?>

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Deprecated: Method ReflectionParameter::getClass() is deprecated in /in/VgRC1 on line 16 Deprecated: Method ReflectionParameter::getClass() is deprecated in /in/VgRC1 on line 16 Deprecated: Method ReflectionParameter::getClass() is deprecated in /in/VgRC1 on line 16 base !!!<br>second !!!<br>zzzzzz
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Deprecated: Method ReflectionParameter::getClass() is deprecated in /in/VgRC1 on line 16 Deprecated: Method ReflectionParameter::getClass() is deprecated in /in/VgRC1 on line 16 Deprecated: Method ReflectionParameter::getClass() is deprecated in /in/VgRC1 on line 16 base !!!<br>second !!!<br>zzzzzz
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: base !!!<br>second !!!<br>zzzzzz

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