php中的自定义过滤器数组值

我正在尝试用PHP做一个过滤函数。我已经开始吼叫：

function handleDuplicates($duplicateMonthReportsArray,$NodeReports,$whatToCompare){
    foreach ($duplicateMonthReportsArray as $duplicate) {
       $duplicateReportsArray = $NodeReports->nodeReports[$duplicate]->indvReports;
       var_dump($duplicateReportsArray); //Prints out what I have written bellow
       foreach ($duplicateReportsArray as $duplicateReport) {
           if($whatToCompare==="both"){
               //Return higest [NoSamples] and latest ["StopTime"] (If possible).
           }
           else if($whatToCompare==="latest"){
               //Return array with latest ["StopTime"]          
           }else{
              //Return array with higest [NoSamples] (If both same like the bellow case then return latest "StopTime")

           }
       }
    }
}

array(2) {
  [""AU Feb-13",201302282                                                                                                                                                                                                            "]=>
  array(2) {
    ["StopTime"]=>
    string(23) "2013-02-28 23:00:00.000"
    ["NoSamples"]=>
    string(5) "673.0"
  }
  [""AU Feb-13",201302282                                                                                                                                                                                                            "]=>
  array(2) {
    ["StopTime"]=>
    string(23) "2013-02-28 23:55:00.000"
    ["NoSamples"]=>
    string(5) "673.0"
  }
}

var_dump会打印出以下内容：

function handleDuplicates($duplicateMonthReportsArray,$NodeReports,$whatToCompare){
    foreach ($duplicateMonthReportsArray as $duplicate) {
       $duplicateReportsArray = $NodeReports->nodeReports[$duplicate]->indvReports;
       var_dump($duplicateReportsArray); //Prints out what I have written bellow
       foreach ($duplicateReportsArray as $duplicateReport) {
           if($whatToCompare==="both"){
               //Return higest [NoSamples] and latest ["StopTime"] (If possible).
           }
           else if($whatToCompare==="latest"){
               //Return array with latest ["StopTime"]          
           }else{
              //Return array with higest [NoSamples] (If both same like the bellow case then return latest "StopTime")

           }
       }
    }
}

array(2) {
  [""AU Feb-13",201302282                                                                                                                                                                                                            "]=>
  array(2) {
    ["StopTime"]=>
    string(23) "2013-02-28 23:00:00.000"
    ["NoSamples"]=>
    string(5) "673.0"
  }
  [""AU Feb-13",201302282                                                                                                                                                                                                            "]=>
  array(2) {
    ["StopTime"]=>
    string(23) "2013-02-28 23:55:00.000"
    ["NoSamples"]=>
    string(5) "673.0"
  }
}

我想做的是在代码中作为注释打印出来。我想做一个定制的过滤函数，它在一个对象数组中循环，这个数组看起来像我上面写的var_dump，或者返回具有最高停止时间、最高nosample或两者（如果可能）的数组实例，否则只返回最大的nosample

您将如何实现此filterfunction？在我的例子中，是否有任何已完成的筛选函数可以使用，它接受一个数组数组并对其执行筛选

---

非常感谢。

假设$arrays变量包含您的var\u转储数据：

$maxStopTime = "";    
$maxStopTimeIx = 0;

$maxNoSamples = "";
$maxNoSamplesIx = 0;

foreach ($arrays as $k=>$array) {
   if ($array['StopTime'] > $maxStopTime) {
      $maxStopTimeIx = $k;
      $maxStopTime = $array['StopTime'];
   }

   if ($array['NoSamples'] > $maxNoSamples) {
      $maxNoSamplesIx = $k;
      $maxNoSamples = $array['NoSamples'];
   }
}

$maxStopTimeArray = $arrays[$maxStopTimeIx];
$maxNoSamplesArray = $arrays[$maxNoSamplesIx];