Pipe example

pipe.php

<?php declare(strict_types=1);

/**
 * @param null $_
 *
 * @return object
 */
function pipe(&$_)
{
  return new class($_)
  {
    private $_;

    /**
     * @param null $_
     */
    public function __construct(&$_)
    {
      $this->_ = &$_;
    }

    /**
     * @param string $name
     * @param array  $args
     *
     * @return self
     */
    public function __call(string $name, array $args): self
    {
      $this->_ = $name(...$args);

      return $this;
    }
  };
}

pipe($_)
  ->strtoupper('!rov nitup')
  ->strrev($_)
  ->var_dump($_);