Nextras\Orm\Entity\Reflection\PropertyMetadata::isValid PHP Method

    public function isValid(&$value)
    {
        if ($value === null && $this->isNullable) {
            return true;
        }
        if ($this->enum) {
            return in_array($value, $this->enum, true);
        }
        foreach ($this->types as $type => $_) {
            $type = strtolower($type);
            if ($type === 'datetime') {
                if ($value instanceof \DateTime) {
                    return true;
                } elseif ($value instanceof \DateTimeImmutable) {
                    $value = new \DateTime($value->format('c'));
                    return true;
                } elseif (is_string($value) && $value !== '') {
                    $value = new \DateTime($value);
                    $value->setTimezone(new DateTimeZone(date_default_timezone_get()));
                    return true;
                } elseif (ctype_digit($value)) {
                    $value = new \DateTime("@{$value}");
                    return true;
                }
            } elseif ($type === 'datetimeimmutable') {
                if ($value instanceof \DateTimeImmutable) {
                    return true;
                } elseif ($value instanceof \DateTime) {
                    $value = new \DateTimeImmutable($value->format('c'));
                    return true;
                } elseif (is_string($value) && $value !== '') {
                    $tmp = new \DateTimeImmutable($value);
                    $value = $tmp->setTimezone(new DateTimeZone(date_default_timezone_get()));
                    return true;
                } elseif (ctype_digit($value)) {
                    $value = new \DateTimeImmutable("@{$value}");
                    return true;
                }
            } elseif ($type === 'string') {
                if (is_string($value)) {
                    return true;
                }
                if (is_int($value) || is_object($value) && method_exists($value, '__toString')) {
                    $value = (string) $value;
                    return true;
                }
            } elseif ($type === 'float') {
                if (is_float($value)) {
                    return true;
                }
                if (is_numeric($value)) {
                    settype($value, 'float');
                    return true;
                } elseif (is_string($value)) {
                    $value = (double) str_replace([' ', ','], ['', '.'], $value);
                    return true;
                }
            } elseif ($type === 'int') {
                if (is_int($value)) {
                    return true;
                }
                if (is_numeric($value)) {
                    settype($value, 'int');
                    return true;
                } elseif (is_string($value)) {
                    $value = (int) str_replace([' ', ','], ['', '.'], $value);
                    return true;
                }
            } elseif ($type === 'bool') {
                if (is_bool($value)) {
                    return true;
                }
                if (in_array($value, [0, 0.0, '0', 1, 1.0, '1'], true)) {
                    $value = (bool) $value;
                    return true;
                }
            } elseif ($type === 'array') {
                if (is_array($value)) {
                    return true;
                }
            } elseif ($type === 'object') {
                if (is_object($value)) {
                    return true;
                }
            } elseif ($type === 'scalar') {
                if (is_scalar($value)) {
                    return true;
                }
            } elseif ($type === 'mixed') {
                return true;
            } else {
                if ($value instanceof $type) {
                    return true;
                }
            }
        }
        return false;
    }

 /**
  * Validates the value.
  * @param  PropertyMetadata $metadata
  * @param  string $name
  * @param  mixed $value
  * @throws InvalidArgumentException
  */
 protected function validate(PropertyMetadata $metadata, $name, &$value)
 {
     if (!$metadata->isValid($value)) {
         $class = get_class($this);
         throw new InvalidArgumentException("Value for {$class}::\${$name} property is invalid.");
     }
 }