entity

Entity.php

<?php

abstract class Entity
{
    abstract public function config(): array;
    
    public function validate()
    {
        $config = $this->config();
        $errors = [];

        foreach($this as $field => $value)
        {
            $type = $config[$field] ?? null;
            
            if ($type === null) {
                continue;
            }
            
            $fun = "is_" . strtolower($type);
            
            if (function_exists($fun)) {
                if (!$fun($value)) {
                    $errors[$field] = false;
                    continue;
                }
            }
            
            if (class_exists($type)) {
                if (!is_a($type, $value)) {
                    $errors[$field] = false;
                    continue;
                }
            }
            
            if (!$type === $value) {
                $errors[$field] = false;
            }
        }
        
        return $errors;
    }
    
    public static function fromArray($a)
    {
        $s = get_called_class();
        $o = new $s();
        foreach($a as $k => $v) {
            $o->{$k} = $v;
        }
        
        return $o;
    }
}


class User extends Entity
{
    public function config(): array
    {
        return [
            'id' => 'int',
            'name' => 'string'
        ];
    }
}

$o = User::fromArray([
    'id' => 123,
    'name' => '123'
]);

$err = $o->validate();

print_r($err);