Online PHP editor | output for MpibO

<?php class Test { private int $number = 5; public function getNumber(): int { return $this->number; } } $fieldName = "number"; $fieldNameFirstChar = mb_strtoupper(mb_substr($fieldName, 0, 1)); $fieldNameLastChars = mb_substr($fieldName, 1); $fieldName = "get" . $fieldNameFirstChar . $fieldNameLastChars; $test = new Test(); print_r($test->$fieldName());