php 并列的数据排序

1.二维数组排序方法

[PHP] 纯文本查看 复制代码

function array_sort($arr, $keys, $type = 'desc') {
    $keysvalue = $new_array = array();
    foreach ($arr as $k => $v) {
        $keysvalue[$k] = $v[$keys];
    }
    if ($type == 'asc') {
        asort($keysvalue);
    } else {
        arsort($keysvalue);
    }
    reset($keysvalue);
    foreach ($keysvalue as $k => $v) {
        $new_array[$k] = $arr[$k];
    }
    return $new_array;
}

需要排序的数组

[PHP] 纯文本查看 复制代码

$arr = array(
        1=>array(
                'id' => 5,
                'name' => 'a',
                'number' => 1
        ),
        2=>array(
                'id' => 4,
                'name' => 'b',
                'number' => 2
        ),
        3=>array(
                'id' => 12,
                'name' => 'c',
                'number' => 3
        ),
        4=>array(
                'id' => 21,
                'name' => 'd',
                'number' => 4
        ),
        5=>array(
                'id' => 30,
                'name' => 'e',
                'number' => 1
        ),
        6=>array(
                'id' => 35,
                'name' => 'f',
                'number' => 4
        ),
);

3.根据number进行排序

[PHP] 纯文本查看 复制代码

$arr= array_sort($arr, 'number', $type = 'desc');

4.对数组的键重新排序

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$newArr = array();
$i = 1;
foreach ($arr as $k=>$v) {
        $newArr[$i]['id'] = $v['id'];
        $newArr[$i]['name']                  = $v['name'];
        $newArr[$i]['number'] = $v['number'];
        $newArr[$i]['mingci'] = 0;
        $i++;
}
unset($arr);

5.将名次写入到数组

[PHP] 纯文本查看 复制代码

foreach ($newArr as $k=>$v) {
        $newArr[$k]['id'] = $v['id'];
        $newArr[$k]['name']                  = $v['name'];
        $newArr[$k]['number'] = $v['number'];
        for ($x=1; $x<=count($newArr); $x++) {
                if($newArr[$x]['number'] == $newArr[$x + 1]['number']){
                        /*对比下一个数组*/
                        $newArr[$x]['mingci'] = $newArr[$x - 1]['mingci'] + 1;
                }else{
                        if($newArr[$x]['number'] == $newArr[$x - 1]['number']){
                                /*对比上一个数组*/
                                $newArr[$x]['mingci'] = $newArr[$x - 1]['mingci'];
                                /*相同提示-并列第*名*/
                                $newArr[$x]['identical'] = $newArr[$x - 1]['mingci'];
                        }else{
                                /*获取上一个排名后+1*/
                                $newArr[$x]['mingci'] = $newArr[$x - 1]['mingci'] + 1;
                        }
                }
        } 
}

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