Phan\Language\FQSEN\FullyQualifiedGlobalStructuralElement::fromFullyQualifiedString PHP Method

    public static function fromFullyQualifiedString(string $fully_qualified_string)
    {
        $key = get_called_class() . '|' . $fully_qualified_string;
        return self::memoizeStatic($key, function () use($fully_qualified_string) {
            // Split off the alternate_id
            $parts = explode(',', $fully_qualified_string);
            $fqsen_string = $parts[0];
            $alternate_id = (int) ($parts[1] ?? 0);
            assert(is_int($alternate_id), "Alternate must be an integer");
            $parts = explode('\\', $fqsen_string);
            $name = array_pop($parts);
            assert(!empty($name), "The name cannot be empty");
            $namespace = '\\' . implode('\\', array_filter($parts));
            assert(!empty($namespace), "The namespace cannot be empty");
            assert($namespace[0] === '\\', "The first character of the namespace must be \\");
            return static::make($namespace, $name, $alternate_id);
        });
    }