Question

所以我有这个代码，它接受一个文件并输出数组，就像我需要的那样但是，我希望能够计算st和city的次数，然后输出它像这样

// atanta, ga, 5
// new albany, ny, 10  
// green bay, wi, 3 
// ...

这是我的代码，它使文件成为一个数组：

  <?php
  $array = array_map('str_getcsv', file('PrintHistory.csv'));
  $my_array = array();
  $new_header = array("Print Date","Cost","Recipient","City","State and Zip","Status","Tracking #/Insurance ID","Date Delivered","Carrier","Class Service","Special Services","Insured Value","Cost Code","Weight","Mail Date","Refund Type");

  $my_array[0] = $new_header;

  foreach ($array as $key => $row) {
     if( $key == 0 ) continue;

  $my_row = array();
  foreach ($row as $key2 => $value) {
      // if this is the recipient column
      if( $key2 == 2 ) {
         // explode the value
         $exp = explode(',', $value);
         // we insert a value in the 4 next column ("Recipient","PO BOX/Address","City","State and Zip")
         // we assume that the $exp[0] = recipient name; $exp[1] = po box/address; ...
    $address = '';
    $secondtolast = trim($exp[count($exp)-2]);
    $last = trim(end($exp));

    foreach($exp as $val){
        if( $val == $secondtolast || $val == $last ) continue;
          $address = $address . $val;
    }

    array_push($my_row, $address, $secondtolast, $last);

  }
  else array_push($my_row, $value);
  }

  array_push($my_array, $my_row);
  }


  echo "<pre>";  
  print_r($my_array); 
  echo "</pre>";

  die();

以下是一些要查看的数组：

Answer 1

您可以在构建 $ my_array 后立即添加此代码：

// count cities
$summary = array();
foreach($my_array as $element) {
    $key = $element[3] . ", " . explode(" ", $element[4])[0];
    $summary[$key] = isset($summary[$key]) ? $summary[$key] + 1 : 1;
}

// print summary
foreach($summary as $city => $count) {
    echo "$city, $count<br>";
}

使用您提供的 $ my_array 内容，您将获得此输出：

BLANCO，TX，2
  WESTCLIFFE，CA，1
  FPO，AP，1
  CHARLOTTE COURT HOUSE，VA，1

Answer 2

你可以试试吗？

$array = array_map('str_getcsv', file('PrintHistory.csv'));

$my_array = array();

$new_header = array("Print Date", "Cost", "Recipient", "City", "State and Zip", "Status", "Tracking #/Insurance ID", "Date Delivered", "Carrier", "Class Service", "Special Services", "Insured Value", "Cost Code", "Weight", "Mail Date", "Refund Type");

$my_array[0] = $new_header;
$cities = array(); // cities to count.
foreach ($array as $key => $row) {
    if ($key == 0) {
        continue;
    }

    $my_row = array();
    foreach ($row as $key2 => $value) {
        // if this is the recipient column
        if ($key2 == 2) {
            // explode the value
            $exp = explode(',', $value);
            // we insert a value in the 4 next column ("Recipient","PO BOX/Address","City","State and Zip")
            // we assume that the $exp[0] = recipient name; $exp[1] = po box/address; ...
            $address = '';
            $secondtolast = trim($exp[count($exp) - 2]);
            $last = trim(end($exp));

            foreach ($exp as $val) {
                if ($val == $secondtolast || $val == $last) {
                    continue;
                }

                $address = $address . $val;
            }

            array_push($my_row, $address, $secondtolast, $last);

        } else {
            array_push($my_row, $value);
        }
        $cities[] = $my_row[3] . ', ' . $my_row[4]; // adding cities to it
    }

    array_push($my_array, $my_row);
}
// count and calculate multiple occurences
$cityCounts = array_count_values($cities));
$citiesMultipleAppears = array();
foreach ($cityCounts as $k => $v) {
    if ($v > 1) {
        $citiesMultipleAppears[] = $k . ', ' . $v;
    }
}

echo "<pre>";
print_r($my_array);
print_r($citiesMultipleAppears);
echo "</pre>";

计算数组键值

2 个答案: