Get Jump Attempts

getJumpAttempts.php

<?php

function getJumpAttempts($maxJump,$slipsBy,$wallHeights)
{
  $attempts = 0;
  foreach($wallHeights as $wallHeight) {
    $attempts++;
    do {
      if($wallHeight > $maxJump) {
        $wallHeight -= $maxJump - $slipsBy;
      } else {
        $wallHeight -= $maxJump;
        break;
      }
      $attempts++;
    } while ($wallHeight - $maxJump > 0);
  }
  return $attempts;
}

// echo getJumpAttempts(10,1,[10]);