Neos\Eel\Helper\StringHelper::startsWith PHP Метод

    public function startsWith($string, $search, $position = null)
    {
        $position = $position !== null ? $position : 0;
        return mb_strpos($string, $search, null, 'UTF-8') === $position;
    }

 /**
  * @test
  * @dataProvider startsWithExamples
  */
 public function startsWithWorks($string, $search, $position, $expected)
 {
     $helper = new StringHelper();
     $result = $helper->startsWith($string, $search, $position);
     $this->assertSame($expected, $result);
 }