Einführung in die Methode zum Sortieren zweidimensionaler Arrays in PHP unter Beibehaltung der Schlüsselnamen (Codebeispiel)

<?php
$data = array(
    1001 => array(
        'age' => 22,
        'name' => '鸠摩智'
    ),
    1007 => array(
        'age' => 21,
        'name' => '慕容复'
    ),
    1004 => array(
        'age' => 27,
        'name' => '乔帮主'
    )
);

 

 = array_column(, 'age'(, SORT_ASC, ();

$data = array(
=> array(
        'age' => 22,
        'name' => '鸠摩智'
    ),
=> array(
        'age' => 21,
        'name' => '慕容复'
    ),
=> array(
        'age' => 27,
        'name' => '乔帮主'
    )
);
//根据字段age对数组$data进行降序排列
$data = arraySort($data, "age", "desc" );
print_r($data);

/**
 * @desc arraySort php二维数组排序 按照指定的key 对数组进行自然排序
 * @param array $arr 将要排序的数组
 * @param string $keys 指定排序的key
 * @param string $type 排序类型 asc | desc
 * @return array
 */
function arraySort($arr, $keys, $type = 'asc')
{
    $keysvalue = $new_array = array();
    foreach ($arr as $k => $v) {
        $keysvalue[$k] = $v[$keys];
    }

    if ($type == 'asc') {
        natsort($keysvalue);
    }
    if ($type == 'desc') {
        natsort($keysvalue);
        $keysvalue = array_reverse($keysvalue, TRUE); // 将原数组中的元素顺序翻转,如果第二个参数指定为 true，则元素的键名保持不变
    }
    foreach ($keysvalue as $k => $v) {
        $new_array[$k] = $arr[$k];
    }
    return $new_array;
}

/**
 * @desc arraySort php二维数组排序 按照指定的key 对数组进行自然排序
 * @param array $arr 将要排序的数组
 * @param string $keys 指定排序的key
 * @param string $type 排序类型 asc | desc
 * @return array
 */
function arraySort($arr, $keys, $type = 'asc')
{
    $keysvalue = $new_array = array();
    foreach ($arr as $k => $v) {
        $keysvalue[$k] = $v[$keys];
    }

    $type == 'asc' ? asort($keysvalue) : arsort($keysvalue);
    foreach ($keysvalue as $k => $v) {
        $new_array[$k] = $arr[$k];
    }
    return $new_array;
}