Question

我目前正在使用以下json数据。（关键是时间hh：mm）

 "chart": {
    "23:20": 11,
    "23:30": 11,
    "23:40": 11,
    "23:50": 16,
    "00:00": 16,
    "00:10": 14,
    "00:20": 11,
    "00:30": 12,
    "00:40": 14,
    "00:50": 10,
    "01:00": 8,
    "01:10": 12,
    "01:20": 15,
    "01:30": 13,
    "01:40": 11,
    "01:50": 8,
    "02:00": 8
 }

https://pastebin.com/cp16Rr9w

然后我将数据移动到php数组。我想对数组进行排序，因此它从当前服务器时间开始并从那里继续。

目前我正在使用以下php（未排序）

  <?php
    foreach ($data['chart'] as $key => $value){
        echo 'Time: '.$key.'Data: '.$value;
    }
  ?>

Answer 1

最简单的方法可能是过滤掉所有过早的＆＃34;条目首先使用array_filter()，然后使用ksort()对结果数组进行排序：

<?php

function getFilter($server_time) {
    return function($item) use($server_time) {
       return (strtotime($item) >= $server_time);
    };
}

$data = '{"chart": {
          "23:20": 11,"23:30": 11,"23:40": 11,"23:50": 16,"00:00": 16,
          "00:10": 14,"00:20": 11,"00:30": 12,"00:40": 14,"00:50": 10,
          "01:00": 8,"01:10": 12,"01:20": 15,"01:30": 13,"01:40": 11,
          "01:50": 8,"02:00": 8
}}';

$json = json_decode($data, true);
$src = $json['chart'];

$server_time = strtotime("now");

$filtered = array_filter($src, getFilter($server_time), ARRAY_FILTER_USE_KEY);
ksort($filtered);

print_r($filtered);

实时测试案例：https://3v4l.org/M3RLm

Answer 2

试一试：

$data = json_decode('{"chart": {
    "23:20": 11,
    "23:30": 11,
    "23:40": 11,
    "23:50": 16,
    "00:00": 16,
    "00:10": 14,
    "00:20": 11,
    "00:30": 12,
    "00:40": 14,
    "00:50": 10,
    "01:00": 8,
    "01:10": 12,
    "01:20": 15,
    "01:30": 13,
    "01:40": 11,
    "01:50": 8,
    "02:00": 8
}}');

$data = (array) $data->chart;

function sort_time($a, $b) { return strtotime($a) > strtotime($b); }

uksort($data, 'sort_time' );

foreach ($data as $key => $value) {
    echo "$key: $value\n";
}

Answer 3

function hsort($a, $b) // callback function for uksort function
{
    return (floatval(str_replace(":", ".", $a)) - floatval(str_replace(":", ".", $b))) // convert each time to float value, like '01:56'-> "01.56", then compare values as float
}

$chart = array_flip($chart); // flip indexes with values to get ability to operate with indexes as array values (which are time in your array)
uksort($chart, "hsort"); // sort time values
$chart = array_flip($chart); // flip again to make time values as index again

根据当前时间对php数组进行排序

3 个答案: