获取值彼此相加

Question

我的代码是这样的

// $t = new ProjectProgressDao(); 
// $progressValues = $t->getRecords($projectId); 

foreach ($progressValues as $Values) { 

    $weekStartingDays[$this->CalculateWeekStartDate($Values->getDate())] = $Values->getWorkCompleted(); 
} 

基本上我想要的是???

Array 
    (
     [a1]=>'k' 
     [a2]=>'a' 
     [a1]=>'w' 
     [a1]=>'z' 

    } 

我想

Array 
    (
     [a1]=>'k+w+z' 
     [a3]=>'w' 
     [a4]=>'z' 

    ) 

A，B等都是数值

Answer 1

只需添加值，初始化位置为0，如果它尚未设置：

foreach ($progressValues as $Values) { 
    if (!isset($weekStartingDays[$this->CalculateWeekStartDate($Values->getDate())])) { 
    $weekStartingDays[$this->CalculateWeekStartDate($Values->getDate())]=0; 
    } 
    $weekStartingDays[$this->CalculateWeekStartDate($Values->getDate())] += $Values->getWorkCompleted(); 
}