Skip First Row in PHPSpreadsheet Import

Just started working with phpspreadsheet. I am trying to figure out how to skip the header row in my excel file when uploading.

require '../vendor/autoload.php';
if (pathinfo($_FILES['upexcel']['name'], PATHINFO_EXTENSION) == 'csv') {
  $reader = new \PhpOffice\PhpSpreadsheet\Reader\Csv();
} else {
  $reader = new \PhpOffice\PhpSpreadsheet\Reader\Xlsx();
}
$spreadsheet = $reader->load($_FILES['upexcel']['tmp_name']);

$worksheet = $spreadsheet->getActiveSheet();
$sql = "INSERT INTO `testCommission` (`One`, `two`, `three`, `four`, `five`, `six`, `seven`) VALUES (?, ?, ?, ?, ?, ?, ?)";
foreach ($worksheet->getRowIterator() as $row) {
  // Fetch data
  $cellIterator = $row->getCellIterator();
  $cellIterator->setIterateOnlyExistingCells(false);
  $data = [];
  foreach ($cellIterator as $cell) {
    $data[] = $cell->getValue();
  }

What can I do to achieve this with the above script?

You need to detect, when it is the first row, a binary variable like this helps

<?php
require '../vendor/autoload.php';
if (pathinfo($_FILES['upexcel']['name'], PATHINFO_EXTENSION) == 'csv') {
  $reader = new \PhpOffice\PhpSpreadsheet\Reader\Csv();
} else {
  $reader = new \PhpOffice\PhpSpreadsheet\Reader\Xlsx();
}
$spreadsheet = $reader->load($_FILES['upexcel']['tmp_name']);

$worksheet = $spreadsheet->getActiveSheet();
$sql = "INSERT INTO `testCommission` (`One`, `two`, `three`, `four`, `five`, `six`, `seven`) VALUES (?, ?, ?, ?, ?, ?, ?)";
$isheader = 0;
foreach ($worksheet->getRowIterator() as $row) {
  // Fetch data
  if($isheader > 0) {
      $cellIterator = $row->getCellIterator();
      $cellIterator->setIterateOnlyExistingCells(false);
      $data = [];
      foreach ($cellIterator as $cell) {
          $data[] = $cell->getValue();
      }
  } else 
  { $isheader = 1; }
}
?>