Determine the duration of each PhaseId

Question

I have the following array: array(size=8)0=>array(size=5)'entity_id'=>int571962'time'=>int1671101084788'timetodatetime'=>string'2022-12-1511:44:44'( length=19)'PhaseId_new'=>string'Close'(length=5)'PhaseId_o

P粉029327711 · Answer

Try something like this.

//group by entity_id
$data_grouped = [];
foreach($data as $element) {
  $data_grouped[$element['entity_id']][] = $element;
}

$entity_phases = [];
//get all phases and their times
foreach ($data_grouped as $entity_id => $elements) {
  foreach ($elements as $element) {
    if ($element['PhaseId_new']) {
      $entity_phases[$entity_id][$element['PhaseId_new']][] = $element['time'];
    }
    if ($element['PhaseId_old']) {
      $entity_phases[$entity_id][$element['PhaseId_old']][] = $element['time'];
    }
  }
}

$result = [];
//iterate all phases and calculate time diffs
foreach ($entity_phases as $entity_id => $phases) {
  foreach ($phases as $key => $values) {
    if (!isset($result[$entity_id][$key])) {
      $result[$entity_id][$key] = 0;
    }
    //iterate in chunks of two elements
    foreach (array_chunk($values, 2) as $value) {
      //continue if only one value is found (e.g. for "Close")
      if (!isset($value[1])) {
        continue;
      }
      $result[$entity_id][$key] = $result[$entity_id][$key] + $value[0] - $value[1];
    }
  }
}
var_dump($result);

Here you go:

array(1) {
  [571962]=>
  array(6) {
    ["Close"]=>
    int(0)
    ["Accept"]=>
    int(729914)
    ["Fulfill"]=>
    int(73006092)
    ["Review"]=>
    int(27033)
    ["Approve"]=>
    int(16152972)
    ["Log"]=>
    int(2700)
  }
}

P粉587970021 · Answer

Okay, this took me longer than I wanted, but I got the result. First is the code:

$entityPhases = [];
foreach ($data as $element) {
    $entityPhases[$element['entity_id']][] = $element;
}

$durations = [];
$oldPhases = [];
foreach ($entityPhases as $phases) {
    foreach(array_reverse($phases) as $phase) {
        if ($phase['PhaseId_old']) {
            $oldPhaseName = $phase['PhaseId_old'];
            $duration = $phase['time'] - $oldPhases[$oldPhaseName]['time'];
            $durations[$oldPhaseName] = ($durations[$oldPhaseName] ?? 0) + $duration;
        }   
        $oldPhases[$phase['PhaseId_new']] = $phase;
    }
}

print_r($durations);

See: https://onlinephp.io/c/92d7f

turn out:

Array
(
    [Log] => 2700
    [Approve] => 16152972
    [Fulfill] => 73006092
    [Accept] => 729914
    [Review] => 27033
)

Now explain:

First, your data array looks upside down, so I used array_reverse() to fix it. The here assumes that there is a logical order.

Since I may need to add multiple periods, I use an array called $durations to add them together.

Then in the inner loop, if there is an old stage ID, I can calculate the duration and add it up. Finally I remember the old stage because I need it in the next iteration of the loop.

I also renamed a lot of things so that their names convey the contents of the variables.

Determine the duration of each PhaseId

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