Online PHP editor | refs for MSHNC

<?php $input='49.99'; $floor=floor($input); $tens=round($input,-1); echo $floor.' '.$tens."\n"; function getClosest($search, $arr) { $closest = null; foreach($arr as $item) { if($closest == null || abs($search - $closest) > abs($item - $search)) { $closest = $item; } } return $closest; } function roundToValues( $tax, array $possibleTaxes ) { $differences = array(); foreach( $possibleTaxes as $possibleTax) { $differences[ $possibleTax ] = abs($possibleTax - $tax); } return array_search(min($differences), $differences); } $array = [ '500' => '200-500', '200' => '100-200', '100' => '50-100', '50' => '20-50', '20' => '0-20', '0' => '0', ]; print_r($array); echo getClosest($input,$array).' '.roundToValues($input,$array);