打印函数的名称具有最高的值

Question

我的三个不同的函数给了我如下的价值:在JSON中。

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我想打印具有最高值的function 的的名称。其功能有：

public function firstHourTrades()
{
    $user_id = Auth::user()->id;
    $data = DB::table('finaltrade')
        ->select(DB::raw('count(*) as first_hour'))
        ->join('exchanges', 'finaltrade.exchange_id', '=', 'exchanges.id')
        ->where('finaltrade.user_id', $user_id)
        ->whereTime(DB::raw('IF(finaltrade.buy_datetime<finaltrade.sell_datetime, finaltrade.buy_datetime, finaltrade.sell_datetime) '), '>=', DB::raw('exchanges.start_time'))
        ->whereTime(DB::raw('IF(finaltrade.buy_datetime<finaltrade.sell_datetime, finaltrade.buy_datetime, finaltrade.sell_datetime) '), '<=', DB::raw("ADDTIME(exchanges.start_time, '1:00:00')"))
        ->get();

    return response()->json($data);
}

public function lastHourTrades()
{
    $user_id = Auth::user()->id;
    $data = DB::table('finaltrade')
        ->select(DB::raw('count(*) as last_hour'))
        ->join('exchanges', 'finaltrade.exchange_id', '=', 'exchanges.id')
        ->where('finaltrade.user_id', $user_id)
        ->whereTime(DB::raw('IF(finaltrade.buy_datetime<finaltrade.sell_datetime, finaltrade.buy_datetime, finaltrade.sell_datetime) '), '<=', DB::raw('exchanges.close_time'))
        ->whereTime(DB::raw('IF(finaltrade.buy_datetime<finaltrade.sell_datetime, finaltrade.buy_datetime, finaltrade.sell_datetime) '), '>=', DB::raw("SUBTIME(exchanges.close_time, '01:00:00')"))
        ->get();
    return response()->json($data);
}

public function otherHoursTrades()
{
    $user_id = Auth::user()->id;
    $data = DB::table('finaltrade')
        ->select(DB::raw('count(*) as other_hours'))
        ->join('exchanges', 'finaltrade.exchange_id', '=', 'exchanges.id')
        ->where('finaltrade.user_id', $user_id)
        ->whereRaw('finaltrade.created_at NOT BETWEEN exchanges.start_time AND DATE_ADD(exchanges.start_time, INTERVAL 1 HOUR)')
        ->whereRaw('finaltrade.created_at NOT BETWEEN exchanges.close_time AND DATE_SUB(exchanges.close_time, INTERVAL 1 HOUR)')
        ->get();

    return response()->json($data);
}

来自我创建的答案：

public function allCmp()
{

$func_names  = ['firstHourTrades()','lastHourTrades()','otherHoursTrades()'];

foreach($func_names as $name)
    $results[$name] = $name();

$max       = max($results);

DD($max);

}

Answer 1

<?php

function one()
{
    return 1;
}
function two()
{
    return 2;
}
function three()
{
    return 3;
}

$func_names = ['three','one','two'];
// Call each function and store result.
foreach($func_names as $name)
    $results[$name] = $name();

$max       = max($results);
$max_funcs = array_keys($results, $max);

var_dump($max_funcs);

输出：

array(1) {
  [0]=>
  string(5) "three"
}

您可能需要在某个时候解码JSON，如下所示：

function get_val_from_my_json($json) {
    return array_values(json_decode($json, true))[0];
}

print get_val_from_my_json('{"some_key":5}');

输出：

5

并通过该函数运行所有结果(假设有效的json)。

$results = array_map('get_val_from_my_json', $results);