Online PHP editor | output for VGhhQ

<?php $xml = "<root> <quoteDay> <date>2018-02-26</date> <close>1586,96</close> </quoteDay> <quoteDay> <date>2018-02-23</date> <close>1577,11</close> </quoteDay> <quoteDay> <date>2018-02-22</date> <close>1565,5</close> </quoteDay> </root>"; $xml = simplexml_load_string($xml) or die("Error: Cannot create object"); $id = 0; $daysInMovingMean = 3; foreach ($xml->quoteDay as $quoteDay) { echo "Moving average for ".$quoteDay->date.":".PHP_EOL; $current = (float) str_replace(",", ".", $quoteDay->close); $sum = 0; for ($days = 0; $days < $daysInMovingMean; $days++) { if (!$xml->quoteDay[$id + $days]) break; $sum += (float) str_replace(",", ".", $xml->quoteDay[$id + $days]->close); } $sumovingMean = $sum / $days; echo $sumovingMean.PHP_EOL; echo PHP_EOL; $id++; }