benchmark.php

<?php
  3
  2 $start = microtime( true );
  1
5   $script = 'roman-numerals.php';
  1 require( $script  );
  2 for( $i = 1; $i <= 3000; $i++ )
  3 {
  4     toRoman( $i );
  5 }
  6
  7 echo microtime( true ) - $start;