foreach循环php中同名的总和值

Question

How to SUM same value in forech if i have output like this

Array
(
    [0] => 200,2,
    [1] => 200,3,
    [2] => 300,5,
)

Output should be like

'200' => 5,
'300' => 5,

So group name 200 and SUM value so result is 2+3

$ga->requestReportData(
        ga_profile_id,
        array('date','pagePath'),
        array('pageviews'),
        '-pageviews',
        'ga:pagePathLevel1==/post/ && ga:pagePathLevel2=~^\/[0-9]+\/$',
        $date,
        $date,
    1);
    foreach ($ga->getResults() as $result) {
        $pageviews = $result->getPageviews();
        $pagepath = $result->getPagePath();
        if(is_numeric(get_part_url($pagepath))){
            print 'INSERT INTO stats (views,content_id) VALUES ("'.$pageviews.'","'.get_part_url($pagepath).'")';
        }
    }

get_part_url is just function to extract part of url.

Answer 1

You can create a new array to group all your results into. Note you may receive notices about offsets, just check firstly the key isset() to stop this or use error_reporting(E_ERROR); to not show warnings.

$groupedResults = array();

foreach ($ga->getResults() as $result) {
    $pageviews = $result->getPageviews();
    $pagepath = get_part_url($result->getPagePath());
    if(is_numeric($pagepath)) $groupedResults[$pagepath] += $pageviews;
}

You can then loop through these and run your DB queries.

foreach ($groupedResults as $k => $v) {
     print 'INSERT INTO stats (views,content_id) VALUES ("'.$v.'","'.$k.'")';
}

See a working example here with example data.

Answer 2

Create a new array and sum the value.

$newArray=array();
Foreach( $myarray as             $key=>$value)
{
   If(!isset($newArray[$key])
  {
     $newArray[$key]=$value;
  }
  Else
  {
     $newArray+=$value;
  }