在循环中添加存储在变量中的值

Question

I have a foreach loop. which has a variable. how to Add variable values in a single variable.

$sal = "";
foreach($variable as $key => $value){
   $sal= $value->Salary;
}
echo $sal;

Answer 1

try this

$sal = 0;
foreach($variable as $key => $value){
   $sal += $value->Salary;
}
echo $sal;