gistfile1.php

<?php
function qs($seq){
  if(count($seq) == false)return $seq;
	$pivot = $seq[0];
	$low = $high = array();
	$length = count($seq);
	for($i = 1;$i < $length;$i++){
		if($seq[$i] < $pivot){
			$low[] = $seq[$i];
		} else {
			$high[] = $seq[$i];
		}
	}
	return array_merge(qs($low),array($pivot),qs($high));
}

//ソート対象の配列

$numArr  = array(26,15,34,21,92,32,1);
echo "ソート前";

echo "<pre>";

print_r($numArr);

echo "</pre>";

echo "ソート後";

echo "<pre>";
$final = qs($numArr);
print_r($final);