冒泡排序

bubbleSort.php

<?php
function bubble_sort($array){
    $count = count($array);
    if ($count <= 0) return false;
    for($i=0; $i<$count; $i++){
        for($j=$i+1; $j<$count; $j++){
            if ($array[$i] > $array[$j]){
                $tmp = $array[$i];
                $array[$i] = $array[$j];
                $array[$j] = $tmp;
            }
        }
    }
    return $array;
}
print_r(bubble_sort([2,6,7,1,4]));