添加两个数组变量

I am needing to get the sum value of two array variables.

Here's my code:

for($i=0;$i<sizeof($check);$i++){   
 for($j=0;$j<sizeof($item_rec);$j++){
  for($k=0;$k<sizeof($last_item_rec);$k++){ 

   //TOTAL_VAR = $item_rec[$j] + $last_item_rec[$k];

   $query=mysqli_query($con,"UPDATE tblstock 
                            SET              
                               rec_qty='{{SUM VALUE HERE}}'
                            WHERE id = '$check[$i]'")
                      or die(mysqli_error($con));       
  } 
 }              
}//end for loop 

As you can see in the comment, I don't know what variable will I declare to sum each array value of variable $item_rec and $last_item_rec.

You cannot use $i variable in all nested for loops.

Change it to $i, $j and $k, for example.

Hi yes you will need to store the sum of two arrays in an array variable.

This code may help,

  for($i=0;$i<sizeof($check);$i++){   
   for($j=0;$j<sizeof($item_rec);$j++){
    for($k=0;$k<sizeof($last_item_rec);$k++){ 

       $TOTAL_VAR = array();

        $TOTAL_VAR = (int)$item_rec[$j] + (int)$last_item_rec[$k];

        $query=mysqli_query($con,"UPDATE tblstock 
                                 SET              
                                   rec_qty='$TOTAL_VAR[$i]'
                                 WHERE id = '$check[$i]'")
                           or die(mysqli_error($con));       
       } 
      }              
     }//end for loop 

Let me see if you can get through this.