simple object toArray

to_array_snippet.php

<?php

public function toArray()
{
    $data = [];
    $reflected = new \ReflectionObject($this);

    foreach ($reflected->getProperties() as $reflectedProperty) {
        $key = $reflectedProperty->name;
        $key_underscore = preg_replace('/(?<=\\w)(?=[A-Z])/','_$1', $key);
        $key_underscore = strtolower($key_underscore);
        $data[$key_underscore] = $this->{$key};
    }

    return $data;
}