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PHP two-dimensional array specifies that the elements are added after they are equal, otherwise new

2022-04-23 09:49:00 【Alexandria sea】 

  $pr_prduct = array();
    $pr_prduct_or = explode(',', Dakuohao($rs["pin_ren_order"], false));
    $ij = 0;
    for ($or = 0; $or < count($pr_prduct_or); $or++) {
        $sqllist = "select * from shop_list where orderid=" . $pr_prduct_or[$or] . " ";
        $arrlist = _get_all($sqllist);
        foreach ($arrlist as $ilist => $rslist) {
            $demo = array_search($rslist["p_id"], array_column($pr_prduct, 'p_id'));// Compare with the library , Existence addition , No new 
            if (is_numeric($demo)) {
                $pr_prduct[$demo]["productnum"] += $rslist["productnum"];
            } else {
                $pr_prduct[$ij]["p_id"] = $rslist["p_id"];
                $pr_prduct[$ij]["productnum"] = $rslist["productnum"];
                $ij++;
            }
        }
    }

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