"undefined index error from a php arrya" Code Answer

1

initialize the value before you use it:

if (!isset($assignedquantityperuser[$row["sellerid"]])) {
  $assignedquantityperuser[$row["sellerid"]] = 0;
}
$assignedquantityperuser[$row["sellerid"]] += $totalunitsordered;
By Randy Horman on March 29 2022

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