How to remove duplicated items in array on Twig

Question

How to remove duplicated items in array on Twig?

I have array value in twig such as.

{{ set array = [\"testA         


        

Answer 1

In this case, as @Webberig said it's better to prepare your data before the rendering of the view. But when you have a more complex process and if is related to the view you can create a Twig Extension, with an extension the code would look like:

MyTwigExtension.php for Twig versions 1.12 and greater:

/**
 * {@inheritdoc}
 */
public function getFunctions()
{
    return array(
        new \Twig_SimpleFunction('array_unset', array($this, 'arrayUnset'))
    );
}

If you are on a Twig version earlier than 1.12, use this MyTwigExtension.php instead:

/**
 * {@inheritdoc}
 */
public function getFunctions()
{
    return array(
        'array_unset' => new \Twig_Function_Method($this, 'arrayUnset')
    );
}

/**
 * Delete a key of an array
 *
 * @param array  $array Source array
 * @param string $key   The key to remove
 *
 * @return array
 */
public function arrayUnset($array, $key)
{
    unset($array[$key]);

    return $array;
}

Twig:

{% set query = array_unset(query, 'array_key') %}